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Chains & Tensioners
By OE Match
Filter by brand
Vehicle Group
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Information
Camshaft timing chain kit.
Fits:
Porsche 964 1991-93 M64.01/0.2/03, M64.50
Porsche 993 1994-95 M96.05/06/07/08
This kit includes:
2x 99310552900/1
2x 96410504302/1
1x 96410503000/1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310552900
The product you are viewing cross references to these numbers
Fits:
Porsche 964 1991-93 M64.01/0.2/03, M64.50
Porsche 993 1994-95 M96.05/06/07/08
This kit includes:
2x 99310552900/1
2x 96410504302/1
1x 96410503000/1
1x 96410502900/1
1x 96410508000/1
1x 96410507900/1
2x 90110554604/1
2x 90110512504/1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310552900
96410507900
96410507901
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
2 x Camshaft Timing Chain. Porsche 911 / 964 / 993 (99310552900/1
2 x Chain tensioner blade. Porsche 964 / 993 (96410504302/1
1 x Slide rail for timing chain. Porsche 964 / 993 (96410503000/1
1 x Slide rail for timing chain, Left. Porsche 964 / 993 (96410502900/1
1 x Chain tensioner adjuster. Porsche 964 / 993 (96410508001/1
1 x Chain tensioner adjuster. Porsche 964 / 993 (96410507901/1
2 x Camshaft sprocket. Porsche 911 1965-98 (90110554604/1
2 x Intermediate shaft sprocket. Porsche 911 / 964 / 993 / 996TT / 997TT (90110512509/1
Price: £842.45
In stock
Vehicle Group
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Information
Camshaft timing chain kit.
Fits:
Porsche 964 1991-93 M64.01/0.2/03, M64.50
Porsche 993 1994-95 M96.05/06/07/08
This kit includes:
2x 99310552900/1
2x 96410504302/1
1x 96410503000/1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310552900
The product you are viewing cross references to these numbers
Fits:
Porsche 964 1991-93 M64.01/0.2/03, M64.50
Porsche 993 1994-95 M96.05/06/07/08
This kit includes:
2x 99310552900/1
2x 96410504302/1
1x 96410503000/1
1x 96410502900/1
1x 96410508001/1
1x 96410507901/1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310552900
90110512504
90110554602
96410507900
96410508000
96410502900
96410503000
96410504302
90010010
50031696
09425
91110552900
90110552900
99310552900
96410507901
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
2 x Camshaft Timing Chain. Porsche 911 / 964 / 993 (99310552900/1
2 x Chain tensioner blade. Porsche 964 / 993 (96410504302/1
1 x Slide rail for timing chain. Porsche 964 / 993 (96410503000/1
1 x Slide rail for timing chain, Left. Porsche 964 / 993 (96410502900/1
1 x Chain tensioner adjuster. Porsche 964 / 993 (96410508001/1
1 x Chain tensioner adjuster. Porsche 964 / 993 (96410507901/1
Price: £615.95
In stock
Vehicle Group
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Information
Camshaft timing chain kit.
Fits:
Porsche 964 1991-93 M64.01/0.2/03, M64.50
Porsche 993 1994-95 M96.05/06/07/08
This kit includes:
2x 99310552900/1
2x 96410504302/1
1x 96410503000/1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310552900
The product you are viewing cross references to these numbers
Fits:
Porsche 964 1991-93 M64.01/0.2/03, M64.50
Porsche 993 1994-95 M96.05/06/07/08
This kit includes:
2x 99310552900/1
2x 96410504302/1
1x 96410503000/1
1x 96410502900/1
1x 96410508000/1
1x 96410507900/1
2x 90110554604/1
2x 90110512504/1
2x 99610143570/1
2x 99610113780/1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310552900
99610113780
99610143570
90110512504
90110554604
96410507900
96410508000
96410502900
96410503000
96410504302
99310552900
96410507901
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
2 x Camshaft Timing Chain. Porsche 911 / 964 / 993 (99310552900/1
2 x Chain tensioner blade. Porsche 964 / 993 (96410504302/1
1 x Slide rail for timing chain. Porsche 964 / 993 (96410503000/1
1 x Slide rail for timing chain, Left. Porsche 964 / 993 (96410502900/1
1 x Chain tensioner adjuster. Porsche 964 / 993 (96410508001/1
1 x Chain tensioner adjuster. Porsche 964 / 993 (96410507901/1
2 x Camshaft sprocket. Porsche 911 1965-98 (90110554604/1
2 x Intermediate shaft sprocket. Porsche 911 / 964 / 993 / 996TT / 997TT (90110512509/1
1 x Bearing shells for intermediate shaft (PAIR). Porsche 993 / 996 turbo / 997 turbo / 997 GT3 (99610113781/2
1 x Bearing shell for intermediate shaft. Porsche 993 / 996 Turbo / 997 Turbo / 997 GT3 (99610143571/2
Price: £862.35
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Information
Camshaft timing chains. Fits left & right CLOSED TYPE.
TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. each car has two
Fits:
Porsche 911 1965-89
Porsche 964 1991-93
Porsche 993 1994-97
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310552900
The product you are viewing cross references to these numbers
TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. each car has two
Fits:
Porsche 911 1965-89
Porsche 964 1991-93
Porsche 993 1994-97
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310552900
99310552900
90110552900
91110552900
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
2 x Camshaft Timing Chain. Porsche 911 / 964 / 993 (99310552900/1
Price: £79.00
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Information
Camshaft Timing Chain. CLOSED TYPE.
OE Match camshaft timing chain - the primary chain that connects the crankshaft to the camshaft(s) and synchronises their rotation. It corresponds to Porsche OEM ref 993.105.529.00, which was used in Porsche 911 1965 - 1997 models.
Fits left or right. Sold each.
Fits:
Porsche 911 1965 - 1989
Porsche 964 1991 - 1993
Porsche 993 1994 - 1997
Diagram ref no 1
The camshaft timing chain is a critical engine component that maintains precise timing between the crankshaft and camshaft(s). This timing governs when the engine’s intake and exhaust valves open and close relative to piston position - a key factor in efficient combustion, engine power, emissions, and overall drivability. The chain connects the rotating crankshaft to the camshafts so that valve timing is mechanically linked and constant.
Function:
• Synchronises engine timing: Maintains crankshaft-to-camshaft rotation alignment
• Supports combustion efficiency: Ensures accurate valve events for intake and exhaust strokes
• Transfers mechanical drive: From crankshaft to camshaft drive mechanisms
• Withstands high loads: Engine torque and RPM forces over long service life.
Unlike timing belts, timing chains are metal-to-metal and designed for durability, although they can stretch or wear with high mileage or inadequate lubrication.
The timing chain is at the heart of the engine’s mechanical timing system. While chains are generally long-lasting, wear can occur due to mileage, heat cycling, lubrication contamination, or slack from chain stretch. A worn or stretched timing chain can lead to:
• Incorrect valve timing
• Engine noise (rattle at startup or idle)
• Reduced power and efficiency Irregular idle and misfires
• Potential catastrophic engine damage if timing deviates too far.
Replacing a worn chain with an OE Match unit restores correct timing precision and helps protect major internal engine components.
When to replace. Install a new timing chain when:
• There is timing chain noise (rattling) at startup or idle
• Chain tensioner or guides are being replaced
• Engine has high mileage with original timing components
• You are performing engine rebuild, top-end service, or head removal
• Diagnostic codes indicate timing inconsistencies
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310552900
The product you are viewing cross references to these numbers
OE Match camshaft timing chain - the primary chain that connects the crankshaft to the camshaft(s) and synchronises their rotation. It corresponds to Porsche OEM ref 993.105.529.00, which was used in Porsche 911 1965 - 1997 models.
Fits left or right. Sold each.
Fits:
Porsche 911 1965 - 1989
Porsche 964 1991 - 1993
Porsche 993 1994 - 1997
Diagram ref no 1
The camshaft timing chain is a critical engine component that maintains precise timing between the crankshaft and camshaft(s). This timing governs when the engine’s intake and exhaust valves open and close relative to piston position - a key factor in efficient combustion, engine power, emissions, and overall drivability. The chain connects the rotating crankshaft to the camshafts so that valve timing is mechanically linked and constant.
Function:
• Synchronises engine timing: Maintains crankshaft-to-camshaft rotation alignment
• Supports combustion efficiency: Ensures accurate valve events for intake and exhaust strokes
• Transfers mechanical drive: From crankshaft to camshaft drive mechanisms
• Withstands high loads: Engine torque and RPM forces over long service life.
Unlike timing belts, timing chains are metal-to-metal and designed for durability, although they can stretch or wear with high mileage or inadequate lubrication.
The timing chain is at the heart of the engine’s mechanical timing system. While chains are generally long-lasting, wear can occur due to mileage, heat cycling, lubrication contamination, or slack from chain stretch. A worn or stretched timing chain can lead to:
• Incorrect valve timing
• Engine noise (rattle at startup or idle)
• Reduced power and efficiency Irregular idle and misfires
• Potential catastrophic engine damage if timing deviates too far.
Replacing a worn chain with an OE Match unit restores correct timing precision and helps protect major internal engine components.
When to replace. Install a new timing chain when:
• There is timing chain noise (rattling) at startup or idle
• Chain tensioner or guides are being replaced
• Engine has high mileage with original timing components
• You are performing engine rebuild, top-end service, or head removal
• Diagnostic codes indicate timing inconsistencies
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310552900
99310552900
90110552900
91110552900
50031696
50032491
The product you are viewing cross references to these numbers
Price: £39.50
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Information
Camshaft Timing Chain. Fits left or right CLOSED TYPE. Reinforced for Motorsport
TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. each car has two
Fits:
Porsche 911 1965-89
Porsche 964 1991-93
Porsche 993 1994-97
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110552902
The product you are viewing cross references to these numbers
TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. each car has two
Fits:
Porsche 911 1965-89
Porsche 964 1991-93
Porsche 993 1994-97
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110552902
99310552900
90110552900
91110552900
90110552902
The product you are viewing cross references to these numbers
Price: £115.00
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Information
Camshaft timing chain. SPLIT TYPE.
Chain Type: Duplex,
Timing Chain Size: D67ZN
No. of chain links: 98
Fits:
Porsche 911 1965 - 1989
Porsche 964 1991 - 1993
TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. each car has two .
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110552951
The product you are viewing cross references to these numbers
Chain Type: Duplex,
Timing Chain Size: D67ZN
No. of chain links: 98
Fits:
Porsche 911 1965 - 1989
Porsche 964 1991 - 1993
TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. each car has two .
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110552951
91110552950
90110552950
91110552951
09426
The product you are viewing cross references to these numbers
Price: £42.75
In stock
Vehicle Group
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Information
Chain tensioner blade.
This chain tensioner blade is an OE-Match replacement built to Porsche’s original specifications. It ensures proper timing chain tension, smooth operation, and reduced noise and wear within the engine’s timing system.
Fits left or right side, Sold each.
Fits:
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram Ref 13
The tensioner blade maintains proper tension on the timing chain, keeping it securely in place as it runs between the camshaft and crankshaft sprockets. By guiding chain movement, it ensures smooth operation, accurate valve timing, and reduced friction and wear. It also minimizes chain noise, helping the engine run quietly and efficiently.
The tensioner blade is located inside the timing chain assembly. It is mounted against the chain path, where it works with the hydraulic chain tensioner to keep the chain properly aligned and tensioned throughout all engine speeds and loads.
Over time, chain tensioner blades can wear, crack, or deform due to constant stress, heat, and oil exposure. A failing blade may cause the timing chain to loosen, rattle, or fall out of alignment. This can result in inaccurate timing, loss of performance, or even major engine damage. Installing an replacement restores the correct fit and function. Ensures long-term reliability, smoother operation, and protection of engine health.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410504302
The product you are viewing cross references to these numbers
This chain tensioner blade is an OE-Match replacement built to Porsche’s original specifications. It ensures proper timing chain tension, smooth operation, and reduced noise and wear within the engine’s timing system.
Fits left or right side, Sold each.
Fits:
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
Diagram Ref 13
The tensioner blade maintains proper tension on the timing chain, keeping it securely in place as it runs between the camshaft and crankshaft sprockets. By guiding chain movement, it ensures smooth operation, accurate valve timing, and reduced friction and wear. It also minimizes chain noise, helping the engine run quietly and efficiently.
The tensioner blade is located inside the timing chain assembly. It is mounted against the chain path, where it works with the hydraulic chain tensioner to keep the chain properly aligned and tensioned throughout all engine speeds and loads.
Over time, chain tensioner blades can wear, crack, or deform due to constant stress, heat, and oil exposure. A failing blade may cause the timing chain to loosen, rattle, or fall out of alignment. This can result in inaccurate timing, loss of performance, or even major engine damage. Installing an replacement restores the correct fit and function. Ensures long-term reliability, smoother operation, and protection of engine health.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410504302
96410504302
The product you are viewing cross references to these numbers
Price: £39.00
In stock
Vehicle Group
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
Information
Chain tensioner.
The timing chain tensioner applies consistent pressure to the timing chain, preventing it from developing slack or vibration as the engine runs. By keeping the chain tight, it helps maintain precise valve timing, which is essential for smooth combustion, engine efficiency, and long-term reliability.
Sold each, Fits Left or Right Side
Fits:
Porsche 911 3.2L 1984 - 1989
Porsche 930 Turbo 1984 - 1989
Porsche 964 Turbo 3.3L
Diagram ref no 10
• Application: Timing chain tensioner - typically one per side of the engine (left and right) depending on the model and engine variant.
• Function: Maintains proper timing chain tension
• Benefits: Improves timing accuracy, reduces engine noise, prevents premature wear
Installed in the timing cover area, the tensioner operates off oil pressure and spring force to automatically adjust the chain’s tautness as engine speed and temperature vary. This prevents noise such as chain slap, reduces premature wear on timing components, and helps avoid timing misalignment - which, if left unchecked, can lead to poor engine performance or damage.
A properly functioning timing chain tensioner is essential for engine health and performance. When a tensioner weakens or fails:
• The timing chain can slacken or skip, leading to noisy operation and accelerated wear.
• Valve timing accuracy deteriorates, which can reduce power and fuel efficiency.
• In severe cases, timing chain misalignment can lead to internal engine damage.
Replacing a worn tensioner ensures that the timing system maintains correct chain tension - promoting smoother operation, better combustion control, and improved engine longevity.
Replace the timing chain tensioner if you notice:
• Rattling or clattering noises from the timing chain area
• Reduced engine performance or rough idle
• Timing codes or check engine light related to valve timing
• During engine rebuilds, timing chain replacement, or if the original tensioner shows signs of wear
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010505803
The product you are viewing cross references to these numbers
The timing chain tensioner applies consistent pressure to the timing chain, preventing it from developing slack or vibration as the engine runs. By keeping the chain tight, it helps maintain precise valve timing, which is essential for smooth combustion, engine efficiency, and long-term reliability.
Sold each, Fits Left or Right Side
Fits:
Porsche 911 3.2L 1984 - 1989
Porsche 930 Turbo 1984 - 1989
Porsche 964 Turbo 3.3L
Diagram ref no 10
• Application: Timing chain tensioner - typically one per side of the engine (left and right) depending on the model and engine variant.
• Function: Maintains proper timing chain tension
• Benefits: Improves timing accuracy, reduces engine noise, prevents premature wear
Installed in the timing cover area, the tensioner operates off oil pressure and spring force to automatically adjust the chain’s tautness as engine speed and temperature vary. This prevents noise such as chain slap, reduces premature wear on timing components, and helps avoid timing misalignment - which, if left unchecked, can lead to poor engine performance or damage.
A properly functioning timing chain tensioner is essential for engine health and performance. When a tensioner weakens or fails:
• The timing chain can slacken or skip, leading to noisy operation and accelerated wear.
• Valve timing accuracy deteriorates, which can reduce power and fuel efficiency.
• In severe cases, timing chain misalignment can lead to internal engine damage.
Replacing a worn tensioner ensures that the timing system maintains correct chain tension - promoting smoother operation, better combustion control, and improved engine longevity.
Replace the timing chain tensioner if you notice:
• Rattling or clattering noises from the timing chain area
• Reduced engine performance or rough idle
• Timing codes or check engine light related to valve timing
• During engine rebuilds, timing chain replacement, or if the original tensioner shows signs of wear
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010505803
93010505803
The product you are viewing cross references to these numbers
Price: £245.00
In stock
Vehicle Group
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
Information
Engine timing chain tensioner O-ring
This O-Ring is an OE-style sealing ring designed for the engine timing chain tensioner assembly on Porsche 911 and 964 Turbo models. It provides a leak-proof seal between the hydraulic chain tensioner and engine housing. The O-ring measures approximately 12 x 1.78 mm.
Sold individually, 2 required per engine
Fits:
Porsche 911 1984 - 1989
Porsche 964 Turbo 3.3L 1990 - 1992 (Engine code: 3069)
Diagram ref no 11
Installed between the hydraulic chain tensioner and engine housing, the O-ring prevents engine oil leakage while maintaining proper hydraulic pressure within the timing chain tensioner system. Correct sealing is essential for reliable chain tension control and accurate engine valve timing. A compromised seal may result in oil leaks, pressure loss, or reduced tensioner performance.
This O-ring is ideal for preventative maintenance, engine rebuilds, timing chain service work, or replacement during tensioner overhaul procedures.
The O-ring seals the hydraulic timing chain tensioner assembly, preventing oil leakage and helping maintain proper hydraulic pressure within the timing system. This supports reliable timing chain operation and accurate engine valve timing.
Function
• Seals hydraulic timing chain tensioner assembly
• Prevents engine oil leakage around tensioner housing
• Maintains hydraulic pressure within timing system
• Supports accurate timing chain tension operation
• Resists heat, oil exposure, and pressure cycling
Over time, engine O-rings can harden, flatten, or crack due to heat exposure, oil contamination, and age. A failing tensioner seal may cause oil leaks and reduced hydraulic pressure, potentially affecting timing chain tension stability. Replacing worn O-rings during service helps maintain reliable engine lubrication and timing system operation.
When to replace
• Oil leakage around timing chain tensioner
• During timing chain or tensioner servicing
• Hardened, flattened, or damaged O-ring seal
• During engine rebuild or overhaul
• Preventative maintenance on high-mileage engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970169040
The product you are viewing cross references to these numbers
This O-Ring is an OE-style sealing ring designed for the engine timing chain tensioner assembly on Porsche 911 and 964 Turbo models. It provides a leak-proof seal between the hydraulic chain tensioner and engine housing. The O-ring measures approximately 12 x 1.78 mm.
Sold individually, 2 required per engine
Fits:
Porsche 911 1984 - 1989
Porsche 964 Turbo 3.3L 1990 - 1992 (Engine code: 3069)
Diagram ref no 11
Installed between the hydraulic chain tensioner and engine housing, the O-ring prevents engine oil leakage while maintaining proper hydraulic pressure within the timing chain tensioner system. Correct sealing is essential for reliable chain tension control and accurate engine valve timing. A compromised seal may result in oil leaks, pressure loss, or reduced tensioner performance.
This O-ring is ideal for preventative maintenance, engine rebuilds, timing chain service work, or replacement during tensioner overhaul procedures.
The O-ring seals the hydraulic timing chain tensioner assembly, preventing oil leakage and helping maintain proper hydraulic pressure within the timing system. This supports reliable timing chain operation and accurate engine valve timing.
Function
• Seals hydraulic timing chain tensioner assembly
• Prevents engine oil leakage around tensioner housing
• Maintains hydraulic pressure within timing system
• Supports accurate timing chain tension operation
• Resists heat, oil exposure, and pressure cycling
Over time, engine O-rings can harden, flatten, or crack due to heat exposure, oil contamination, and age. A failing tensioner seal may cause oil leaks and reduced hydraulic pressure, potentially affecting timing chain tension stability. Replacing worn O-rings during service helps maintain reliable engine lubrication and timing system operation.
When to replace
• Oil leakage around timing chain tensioner
• During timing chain or tensioner servicing
• Hardened, flattened, or damaged O-ring seal
• During engine rebuild or overhaul
• Preventative maintenance on high-mileage engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970169040
99970169040
The product you are viewing cross references to these numbers
Price: £2.60
In stock
Vehicle Group
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Information
Slide rail for timing chain. LEFT
The guide rail provides a stable pathway for the timing chain as it connects the crankshaft and camshaft, maintaining correct alignment under heat, load, and rotational forces.
Fits:
Porsche 964 1989 - 1994
Porsche 993 1995 - 1998
Diagram Ref No 16.
• Application: Timing chain guide (straight/left) used in the timing system on 964 and 993 models to direct the chain path and maintain tension.
The guide rail helps support the timing chain’s smooth movement, reducing slack and guiding it over sprockets and tensioners. It works hand-in-hand with the tensioner to maintain proper chain tension, which is critical for accurate valve timing, smooth engine operation, and longevity of the timing chain system. Without a properly functioning guide rail, timing chain wear accelerates, potentially leading to engine misalignment or failure.
Installed in the engine block or timing cover pathway, this rail contacts the timing chain and provides a friction-resistant surface that helps the chain track correctly as the engine runs. Over time, original rails can wear, fracture, or lose their smooth surface, increasing chain wear and noise. An OE Match guide rail restores the correct surface finish and dimensions for reliable chain guidance and engine timing control.
The timing system in your Porsche engine relies on precise chain routing and tension to synchronize the crankshaft and camshafts. A worn or damaged guide rail can lead to:
• Excessive chain wear and noise
• Incorrect valve timing
• Accelerated wear on sprockets and tensioners
• Potential engine performance issues or damage
Replacing worn guide rails restores proper chain guidance, reduces engine noise, and helps maintain reliable engine timing - especially important in high-performance engines where precision is critical.
Replace the timing chain guide rail if you notice:
• Rattling or unusual chain noise from the timing cover area
• Visible wear on the rail surface
• Chain slack or timing inconsistencies
• During timing chain or tensioner replacement
• After significant mileage or engine overhaul work
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410502900
The product you are viewing cross references to these numbers
The guide rail provides a stable pathway for the timing chain as it connects the crankshaft and camshaft, maintaining correct alignment under heat, load, and rotational forces.
Fits:
Porsche 964 1989 - 1994
Porsche 993 1995 - 1998
Diagram Ref No 16.
• Application: Timing chain guide (straight/left) used in the timing system on 964 and 993 models to direct the chain path and maintain tension.
The guide rail helps support the timing chain’s smooth movement, reducing slack and guiding it over sprockets and tensioners. It works hand-in-hand with the tensioner to maintain proper chain tension, which is critical for accurate valve timing, smooth engine operation, and longevity of the timing chain system. Without a properly functioning guide rail, timing chain wear accelerates, potentially leading to engine misalignment or failure.
Installed in the engine block or timing cover pathway, this rail contacts the timing chain and provides a friction-resistant surface that helps the chain track correctly as the engine runs. Over time, original rails can wear, fracture, or lose their smooth surface, increasing chain wear and noise. An OE Match guide rail restores the correct surface finish and dimensions for reliable chain guidance and engine timing control.
The timing system in your Porsche engine relies on precise chain routing and tension to synchronize the crankshaft and camshafts. A worn or damaged guide rail can lead to:
• Excessive chain wear and noise
• Incorrect valve timing
• Accelerated wear on sprockets and tensioners
• Potential engine performance issues or damage
Replacing worn guide rails restores proper chain guidance, reduces engine noise, and helps maintain reliable engine timing - especially important in high-performance engines where precision is critical.
Replace the timing chain guide rail if you notice:
• Rattling or unusual chain noise from the timing cover area
• Visible wear on the rail surface
• Chain slack or timing inconsistencies
• During timing chain or tensioner replacement
• After significant mileage or engine overhaul work
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410502900
96410502900
The product you are viewing cross references to these numbers
Price: £39.95
In stock
Vehicle Group
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Information
Slide rail for timing chain, RIGHT.
This timing chain guide rail is a direct-fit replacement for Porsche 964 and 993 engines. It ensures the timing chain runs smoothly and stays properly aligned. Built to factory standards, it restores reliability and protects against wear or damage.
Fits:
Porsche 964 1989 - 1994
Porsche 993 1995 - 1998
Diagram Ref No 16.
• Position: Mounted along the timing chain assembly inside the crankcase, alongside the chain tensioner and sprockets.
• Function: The guide rail runs parallel to the timing chain, keeping it on its correct path between the crankshaft sprocket and camshaft sprockets, while working in conjunction with the chain tensioner to maintain stability.
Over time, guide rails can degrade, crack, or lose their smooth surface due to constant chain contact and engine heat. A compromised rail risks chain misalignment, noisy operation, or even serious engine damage. Replacing restores factory accuracy and reliability, protecting your Porsche’s performance and longevity.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410503000
The product you are viewing cross references to these numbers
This timing chain guide rail is a direct-fit replacement for Porsche 964 and 993 engines. It ensures the timing chain runs smoothly and stays properly aligned. Built to factory standards, it restores reliability and protects against wear or damage.
Fits:
Porsche 964 1989 - 1994
Porsche 993 1995 - 1998
Diagram Ref No 16.
• Position: Mounted along the timing chain assembly inside the crankcase, alongside the chain tensioner and sprockets.
• Function: The guide rail runs parallel to the timing chain, keeping it on its correct path between the crankshaft sprocket and camshaft sprockets, while working in conjunction with the chain tensioner to maintain stability.
Over time, guide rails can degrade, crack, or lose their smooth surface due to constant chain contact and engine heat. A compromised rail risks chain misalignment, noisy operation, or even serious engine damage. Replacing restores factory accuracy and reliability, protecting your Porsche’s performance and longevity.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410503000
96410503000
The product you are viewing cross references to these numbers
Price: £29.00
In stock
Vehicle Group
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
Information
Sprocket support for chain tensioner.
Fits:
Porsche 911 / 930 1980-89
Porsche 964 Turbo 3.3L 1991-92
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9301055
The product you are viewing cross references to these numbers
Fits:
Porsche 911 / 930 1980-89
Porsche 964 Turbo 3.3L 1991-92
Click 'Zoom in' for large parts diagram.
Diagram ref no 5
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9301055
16650
16651
93010550900
93010551000
The product you are viewing cross references to these numbers
Prices from: £180.00
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Information
Timing chain split link.
To be used with Part Code: 91110552951 OR 91110552951/1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
911327339990
The product you are viewing cross references to these numbers
To be used with Part Code: 91110552951 OR 91110552951/1
Need when fitting split timing chains. Each car has two.
Fits:
Porsche 911 1965 - 1989
Porsche 964 1990 - 1994
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
911327339990
911327339990
90110553000
91110552951
91110552950
The product you are viewing cross references to these numbers
Price: £3.00
In stock
DISPLAYING 1 to 14 (of 14 products)
Also found on these pages
About Chains & Tensioners
OEMatch Chains & Tensioners — Fit, Function, Confidence
Timing chains, guides and tensioners keep a Porsche engine’s valve timing correct across a wide range of operating conditions. This group of parts is specified for durability and stable timing under load; replacement is common during major service or when symptoms such as rattle, rough idle or diagnostic codes point to timing system wear.
Available Types- Timing chains for petrol engines
- Tensioner kits, hydraulic and mechanical
- Chain guides and rails
- Complete timing chain kits with seals and fasteners
Understanding OEMatch Chains & Tensioners
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original chains & tensioners.
OE (Original Equipment) refers to parts matching original specifications for the chains & tensioners and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM chains & tensioners engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. In practice, the timing chain system synchronises the crankshaft and camshafts, the guides control chain run and alignment, and the tensioner maintains correct chain tension to prevent slack, noise and timing drift under varying oil pressure and temperature conditions.
OE (Original Equipment) refers to parts matching original specifications for the chains & tensioners and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM chains & tensioners engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. In practice, the timing chain system synchronises the crankshaft and camshafts, the guides control chain run and alignment, and the tensioner maintains correct chain tension to prevent slack, noise and timing drift under varying oil pressure and temperature conditions.
Benefits Include
- Restores accurate valve timing and smoother running
- Reduces start-up rattle and in-service chain noise
- Limits the risk of valve-to-piston contact from excessive chain slack
- Chain stretch or elongation from long service life
- Worn or leaking hydraulic tensioners losing damping or pressure
- Abrasion or breakage of guides due to heat and contamination
- Oil degradation or low oil pressure accelerating component wear
The Importance of Replacing with OEMatch Chains & Tensioners
Timely replacement protects the engine from progressive damage and helps preserve performance and drivability. Using correctly specified chains, guides and tensioners reduces the chance of unexpected failure during operation and supports consistent timing across the rev range. OEMatch provides a wide selection of Porsche components, cataloguing over 4,000 part numbers and more than 8,700 OE cross-references to assist repairs across different model generations.
Advantages
- Parts matched to Porsche timing-system specifications where applicable
- Options for hydraulic and mechanical tensioning arrangements
- Complete kits simplify overhaul work by including guides, seals and fixings
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