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Chains & Tensioners
By OE Match
Filter by brand
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Timing Chain Guide & Tensioner Guide replacement set, consisting of:
2x 99610517353/1 - OE Match Timing Chain Guides
2x 99610517552/1 - OE Match Timing Chain Tensioner Guides
Manufactured to closely replicate the original Porsche components, this set provides a complete replacement for the timing chain guide and tensioner guide wear surfaces on compatible Porsche engines.
Fits:
Porsche 986 Boxster 2.5L / 2.7L / 3.2L 1997 - 2002
Porsche 996 3.4L 1998 - 2001
Diagram Ref No 33 & 30
The timing chain guide & tensioner guide set includes four precision-engineered plastic guides designed to match the original Porsche timing system components in fit, shape, and performance. When installed, these guides support the timing chain and help maintain correct chain tension and alignment throughout engine operation.
The timing chain guides and tensioner guides provide support and controlled routing for the timing chain, keeping it properly positioned as it rotates over the cam and crank sprockets. They work with the hydraulic tensioner to maintain correct chain tension, helping preserve accurate valve timing and reduce chain slack or noise.
Function:
• Timing Chain Guides (OE ref no 99610517353): Provide a wear-resistant surface that the timing chain runs against, supporting proper alignment and reducing chain vibration.
• Tensioner Guides (OE ref no 99610517552): Work in conjunction with the timing chain tensioner to keep chain tension stable, absorbing dynamic loads and preventing slack or chain chatter.
Together, the guides help ensure smooth, quiet chain operation, accurate timing, and long-term engine reliability.
Timing chain guides and tensioner guides are wear items in Porsche engines. Over time, original guide surfaces can wear, crack, or generate plastic debris due to heat and friction. Worn guides can lead to chain slack, noise, inaccurate valve timing, or accelerated chain and sprocket wear. Replacing them with OE Match components restores proper chain support, reduces operational noise, and helps protect expensive internal timing components.
When to replace:
• During timing chain service or overhaul
• If timing chain rattle / noise is detected at start-up or idle
• When engine has high mileage
• If prior guides show wear, cracking, or plastic debris
• As part of preventive maintenance on performance or daily-use engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517353KIT
The product you are viewing cross references to these numbers
2x 99610517353/1 - OE Match Timing Chain Guides
2x 99610517552/1 - OE Match Timing Chain Tensioner Guides
Manufactured to closely replicate the original Porsche components, this set provides a complete replacement for the timing chain guide and tensioner guide wear surfaces on compatible Porsche engines.
Fits:
Porsche 986 Boxster 2.5L / 2.7L / 3.2L 1997 - 2002
Porsche 996 3.4L 1998 - 2001
Diagram Ref No 33 & 30
The timing chain guide & tensioner guide set includes four precision-engineered plastic guides designed to match the original Porsche timing system components in fit, shape, and performance. When installed, these guides support the timing chain and help maintain correct chain tension and alignment throughout engine operation.
The timing chain guides and tensioner guides provide support and controlled routing for the timing chain, keeping it properly positioned as it rotates over the cam and crank sprockets. They work with the hydraulic tensioner to maintain correct chain tension, helping preserve accurate valve timing and reduce chain slack or noise.
Function:
• Timing Chain Guides (OE ref no 99610517353): Provide a wear-resistant surface that the timing chain runs against, supporting proper alignment and reducing chain vibration.
• Tensioner Guides (OE ref no 99610517552): Work in conjunction with the timing chain tensioner to keep chain tension stable, absorbing dynamic loads and preventing slack or chain chatter.
Together, the guides help ensure smooth, quiet chain operation, accurate timing, and long-term engine reliability.
Timing chain guides and tensioner guides are wear items in Porsche engines. Over time, original guide surfaces can wear, crack, or generate plastic debris due to heat and friction. Worn guides can lead to chain slack, noise, inaccurate valve timing, or accelerated chain and sprocket wear. Replacing them with OE Match components restores proper chain support, reduces operational noise, and helps protect expensive internal timing components.
When to replace:
• During timing chain service or overhaul
• If timing chain rattle / noise is detected at start-up or idle
• When engine has high mileage
• If prior guides show wear, cracking, or plastic debris
• As part of preventive maintenance on performance or daily-use engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517353KIT
99610517552
99610517353
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
2 x Timing chain guide. Porsche 986 Boxster 1997-02 / 996 3.4L 1998-01 (99610517353/1
2 x Tensioner blade. Porsche 986 Boxster 1997-02 / 996 3.4L 1998-02 (99610517552/1
Price: €109.98
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Timing chain set camshafts for PORSCHE 996 3.4L Carrera 986 2.5L 2.7L 3.2L
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
ENGINEKIT12
The product you are viewing cross references to these numbers
This timing chain kit includes the timing chains for the
camshaft and intermediate shaft, as well as the slide and tension rails.
Due to the complex design with an intermediate shaft and two
overhead camshafts, the water boxers of the modern Porsche 911 Carrera and
Boxster have a variety of chains and slide rails. These vary depending on the
displacement or model year, even within a series.
The chain guides were slightly changed between the 3.4L and
3.6L Carrera engines from 2001 to 2002. The engines of the 911 turbo and GT
models, however, are based on the proven 911 technology from the previous
models. The timing chains as well as slide rails and tensioning rails for the
valve control are fundamentally different.
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
ENGINEKIT12
99610517054
996.105.170.54
996 105 170 54
99610517157
996.105.171.57
996 105 171 57
99610517353
996.105.173.53
996 105 173 53
99610517552
996.105.175.52
996 105 175 52
99610517753
996.105.177.53
996 105 177 53
99610525300
996.105.253.00
996 105 253 00
99610517052
996.105.170.52
996 105 170 52
99610517053
996.105.170.53
996 105 170 53
99610517154
996.105.171.54
996 105 171 54
99610517155
996.105.171.55
996 105 171 55
99610517752
996.105.177.52
996 105 177 52
99610525301
996.105.253.01
996 105 253 01
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
2 x Timing Chain. Porsche 996 / 986 (99610517054/1
1 x Timing chain. Porsche 996 / 986 (99610517157/2
2 x Timing chain guide. Porsche 986 Boxster 1997-02 / 996 3.4L 1998-01 (99610517353/1
2 x Tensioner blade. Porsche 986 Boxster 1997-02 / 996 3.4L 1998-02 (99610517552/1
2 x Timing chain. Porsche 996 / 986 Boxster (99610517753/2
2 x Guide rail kit. Porsche 986 / 996 (99610525301/1
Price: €394.29
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
Chain adjuster sealing ring. 27 x 32
3 per engine. Price is for each.
Fits:
Porsche 996
Porsche 986 Boxster
Porsche 987 Boxster
Porsche 987C Cayman
Porsche 997.1 Gen
Click 'Zoom in' for large parts diagram.
Diagram ref no 37
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90012314730
The product you are viewing cross references to these numbers
3 per engine. Price is for each.
Fits:
Porsche 996
Porsche 986 Boxster
Porsche 987 Boxster
Porsche 987C Cayman
Porsche 997.1 Gen
Click 'Zoom in' for large parts diagram.
Diagram ref no 37
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90012314730
90012314730
The product you are viewing cross references to these numbers
Price: €0.88
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Chain Tensioner Adjuster - up to 15/08/2000
The Chain Tensioner Adjuster is a critical component in your engine’s timing system. Designed to maintain the correct tension on the timing chain, it ensures smooth, accurate synchronization between the crankshaft and camshafts for reliable performance.
Fits:
M96.20 / M96.21 / M96.22
M96.01 / M96.02 / M96.04
Diagram Ref No 35
What This Product Does:
The chain tensioner adjuster is a vital component in Porsche engines that use timing chains. Its role is to keep the timing chain under correct tension, ensuring smooth and precise synchronization between the crankshaft and camshafts.
Functions:
The chain tensioner adjuster is a critical timing component. If it fails, the timing chain can skip teeth or lose tension, resulting in poor engine performance or catastrophic internal damage.
This part is especially important during engine rebuilds, timing chain services, or if unusual noises develop from the timing system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610518059
The product you are viewing cross references to these numbers
The Chain Tensioner Adjuster is a critical component in your engine’s timing system. Designed to maintain the correct tension on the timing chain, it ensures smooth, accurate synchronization between the crankshaft and camshafts for reliable performance.
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L >>August 15th, 2000 up to M96.22 65100500 with roller-type chain
- Porsche Boxster S 986 3.2L >>August 15th, 2000 up to M96.21 67100500 with roller-type chain
M96.20 / M96.21 / M96.22
- Porsche 996 C2 3.4L 1997-08/01 >>August 15th, 2000 up to M96.04 66100500 with roller-type chain
- Porsche 996 C4 3.4L 1997-08/01
>>August
15th, 2000 up to M96.04 66100500 with roller-type chain
M96.01 / M96.02 / M96.04
Diagram Ref No 35
What This Product Does:
The chain tensioner adjuster is a vital component in Porsche engines that use timing chains. Its role is to keep the timing chain under correct tension, ensuring smooth and precise synchronization between the crankshaft and camshafts.
Functions:
- Maintains proper chain tension to prevent slack or excessive tightness.
- Reduces chain noise and vibration.
- Helps keep engine timing accurate for optimal performance.
- Protects against premature wear of the chain and sprockets.
- Rattling or knocking noise from the engine, especially at startup.
- Engine light triggered due to timing issues.
- Engine misfires or rough running caused by timing irregularities.
- Excessive timing chain wear or visible slack.
- In severe cases, loss of timing leading to serious engine damage.
The chain tensioner adjuster is a critical timing component. If it fails, the timing chain can skip teeth or lose tension, resulting in poor engine performance or catastrophic internal damage.
This part is especially important during engine rebuilds, timing chain services, or if unusual noises develop from the timing system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610518059
99610518059
99610518054
99610518057
The product you are viewing cross references to these numbers
Price: €163.58
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Timing chain guide rail kit, including o-ring (99970164740).
Fits:
Porsche 986 Boxster 1997-04
Porsche 996 3.4L C2 / C4 >>2001
Click 'Zoom in' for large parts diagram.
Diagram ref no 9.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610525301
The product you are viewing cross references to these numbers
Fits:
Porsche 986 Boxster 1997-04
Porsche 996 3.4L C2 / C4 >>2001
Click 'Zoom in' for large parts diagram.
Diagram ref no 9.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610525301
99610525300
99610525301
99970164740
The product you are viewing cross references to these numbers
Price: €29.25
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Information
O-ring - 18.77 x 1.78 - for timing chain adjuster or tensioner.
Fits:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970734440
The product you are viewing cross references to these numbers
Fits:
Porsche 986 Boxster / S 1997-04 - x3 required
Porsche 987 Boxster / S 2005-08 - x3 required
Porsche 987 Cayman / S 2006-08 - x4 required
Porsche 996 Carrera 1998-05 - x3 required
Porsche 997-1 Carrera 2005-08 - x4 required
Diagram ref. 25.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970734440
99970734440
The product you are viewing cross references to these numbers
Price: €5.79
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Information
Timing chain tensioner blade
OE Match replacement chain guide used within the engine timing system. It provides the wear surface the timing chain runs against while the hydraulic tensioner maintains correct chain tension. It supports and guides the timing chain, helping the tensioner maintain stable chain tension and reducing chain slap. This helps protect timing accuracy and contributes to quieter, smoother engine operation.
Sold each, 2 required per vehicle
Fits:
Porsche 986 Boxster 2.5L / 2.7L / 3.2L 1997 - 2002
Porsche 996 3.4L 1998 - 2002
Diagram ref no 30.
This OE Match tensioner blade is manufactured to OE-equivalent dimensions and guide profile to ensure correct chain tracking and compatibility with the original timing components. As the chain runs over the guide, the blade’s engineered surface minimises friction and noise while resisting wear from constant high-speed chain contact. It’s a key service item for M96 timing systems - ideal for rebuilds or preventative maintenance where aged guide material may become brittle or worn.
Fitted inside the timing case, the blade acts as a controlled contact surface for the chain while the tensioner applies pressure to keep the chain correctly tensioned. Maintaining proper guide condition helps prevent excessive wear debris and reduces the risk of poor chain control over time.
Tensioner blades are wear components. As they age, the guide surface can wear and shed material, which can affect chain control and create debris in the oil system. Renewing worn guides helps maintain stable timing chain behaviour and supports long-term timing system reliability.
When to replace:
• During engine rebuild / timing service
• Evidence of guide wear or debris in oil (plastic particles)
• Timing system noise that indicates chain slap/rattle
• High-mileage preventative maintenance
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517552
The product you are viewing cross references to these numbers
OE Match replacement chain guide used within the engine timing system. It provides the wear surface the timing chain runs against while the hydraulic tensioner maintains correct chain tension. It supports and guides the timing chain, helping the tensioner maintain stable chain tension and reducing chain slap. This helps protect timing accuracy and contributes to quieter, smoother engine operation.
Sold each, 2 required per vehicle
Fits:
Porsche 986 Boxster 2.5L / 2.7L / 3.2L 1997 - 2002
Porsche 996 3.4L 1998 - 2002
Diagram ref no 30.
This OE Match tensioner blade is manufactured to OE-equivalent dimensions and guide profile to ensure correct chain tracking and compatibility with the original timing components. As the chain runs over the guide, the blade’s engineered surface minimises friction and noise while resisting wear from constant high-speed chain contact. It’s a key service item for M96 timing systems - ideal for rebuilds or preventative maintenance where aged guide material may become brittle or worn.
Fitted inside the timing case, the blade acts as a controlled contact surface for the chain while the tensioner applies pressure to keep the chain correctly tensioned. Maintaining proper guide condition helps prevent excessive wear debris and reduces the risk of poor chain control over time.
Tensioner blades are wear components. As they age, the guide surface can wear and shed material, which can affect chain control and create debris in the oil system. Renewing worn guides helps maintain stable timing chain behaviour and supports long-term timing system reliability.
When to replace:
• During engine rebuild / timing service
• Evidence of guide wear or debris in oil (plastic particles)
• Timing system noise that indicates chain slap/rattle
• High-mileage preventative maintenance
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517552
99610517552
The product you are viewing cross references to these numbers
Price: €25.74
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Timing chain. 2 per engine. Sold each. OPEN Type
Fits:
Porsche 996 3.4L C2/C4 1998-01
Porsche 986 Boxster 1997-04
Click 'Zoom in' for large parts diagram.
Diagram Ref No 26.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517753
The product you are viewing cross references to these numbers
Fits:
Porsche 996 3.4L C2/C4 1998-01
Porsche 986 Boxster 1997-04
Click 'Zoom in' for large parts diagram.
Diagram Ref No 26.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517753
25199
99610517753
99610517752
25393
The product you are viewing cross references to these numbers
Price: €70.20
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Timing chain guide.
OE Match timing chain guide designed to replicate the original Porsche factory component used in the timing chain system of certain Porsche flat-six engines. It provides a smooth, wear-resistant surface against which the timing chain runs, helping maintain correct chain alignment and reduce noise.
Sold each, 2 required per engine.
Fits:
Porsche 986 Boxster 2.5L / 2.7L / 3.2L 1997 - 2002
Porsche 996 3.4L 1998 - 2001
Diagram Ref No 33.
The timing chain guide provides a guided surface for the timing chain, helping it run smoothly over the cam and crank sprockets. It helps minimize vibration, reduce “chain slap,” and maintain correct chain tracking as the chain cycles through its range of motion.
Function: Installed within the timing cover/case, the guide sits along the chain’s routing path and offers a stable, sliding surface that interacts with the chain links. In conjunction with the timing chain tensioner (such as part 99610517552), it helps maintain correct chain tension, reduces wear on both the chain and sprockets, and supports quiet, efficient engine operation.
Timing chain guides are wear items subject to constant chain contact and engine vibration. Over time, original guides can wear unevenly, crack, or shed material - which can lead to chain noise, reduced tension stability, and accelerated wear on the chain and sprockets. Replacing worn guides with an OE Match component helps preserve timing accuracy and reduces the risk of serious timing system damage.
When to replace:
• Engine exhibits chain rattle or timing noise
• Original guides are cracked, worn, or contaminated
• Timing system is being serviced or rebuilt
• During high-mile preventive maintenance
• After tensioner service or replacement
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517353
The product you are viewing cross references to these numbers
OE Match timing chain guide designed to replicate the original Porsche factory component used in the timing chain system of certain Porsche flat-six engines. It provides a smooth, wear-resistant surface against which the timing chain runs, helping maintain correct chain alignment and reduce noise.
Sold each, 2 required per engine.
Fits:
Porsche 986 Boxster 2.5L / 2.7L / 3.2L 1997 - 2002
Porsche 996 3.4L 1998 - 2001
Diagram Ref No 33.
The timing chain guide provides a guided surface for the timing chain, helping it run smoothly over the cam and crank sprockets. It helps minimize vibration, reduce “chain slap,” and maintain correct chain tracking as the chain cycles through its range of motion.
Function: Installed within the timing cover/case, the guide sits along the chain’s routing path and offers a stable, sliding surface that interacts with the chain links. In conjunction with the timing chain tensioner (such as part 99610517552), it helps maintain correct chain tension, reduces wear on both the chain and sprockets, and supports quiet, efficient engine operation.
Timing chain guides are wear items subject to constant chain contact and engine vibration. Over time, original guides can wear unevenly, crack, or shed material - which can lead to chain noise, reduced tension stability, and accelerated wear on the chain and sprockets. Replacing worn guides with an OE Match component helps preserve timing accuracy and reduces the risk of serious timing system damage.
When to replace:
• Engine exhibits chain rattle or timing noise
• Original guides are cracked, worn, or contaminated
• Timing system is being serviced or rebuilt
• During high-mile preventive maintenance
• After tensioner service or replacement
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517353
99610517353
The product you are viewing cross references to these numbers
Price: €29.25
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Timing chain. 1 per engine.
Fits:
Porsche 996 3.4L 1998-00
Porsche 986 Boxster 1997-01
Click 'Zoom in' for large parts diagram.
Diagram Ref No 17.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517157
The product you are viewing cross references to these numbers
Fits:
Porsche 996 3.4L 1998-00
Porsche 986 Boxster 1997-01
Click 'Zoom in' for large parts diagram.
Diagram Ref No 17.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517157
99610517154
99610517155
99610517157
25394
50034371
The product you are viewing cross references to these numbers
Price: €38.61
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Engine timing chain. CLOSED TYPE.
OE Match replacement engine timing chain - also referred to as the camshaft/intermediate shaft timing chain - designed to replicate the original Porsche timing chain used in the engine timing drive system of early 911 (996) and Boxster engines.
2 per engine. Sold each.
Fits:
Porsche 996 3.4L C2/C4 1998 - 2001
Porsche 986 Boxster 1997 - 2004
Diagram Ref No 26.
The timing chain ensures precise mechanical synchronization between critical rotating components of the engine - primarily the crankshaft and camshafts (and in some layouts, the intermediate shaft). It maintains the correct timing of valve opening and closing events relative to piston position, which is vital for efficient combustion, smooth engine operation, and proper power delivery.
Function:
• Synchronises rotation of the crankshaft and camshafts
• Maintains correct valve timing for intake and exhaust events
• Transfers mechanical drive through intermediate gears/shafts
• Supports reliable engine performance and emissions control.
A worn or elongated timing chain can cause timing errors, engine noise, rough running, or in more severe cases, engine damage if the timing relationship is lost.
The timing chain is a critical engine component. Over long service intervals and high mileage, the chain can stretch or wear, leading to slack, improper timing, and noisy operation. If not addressed, timing chain issues can cause:
• Engine noise (chain rattle)
• Poor idle and power delivery
• Timing inaccuracies affecting combustion
• Potential engine damage if timing is lost.
Replacing worn chains with an OE Match unit helps ensure accurate timing, preserves engine performance, and protects other internal engine components.
When to replace. Replace the timing chain when:
• There is rattling or slapping noise from the timing cover area
• Timing chain slack is detected in inspection
• You are performing an engine rebuild or overhaul
• Timing tensioner or guides show wear
• Irregular idle or misfires suggest timing drift
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517753
The product you are viewing cross references to these numbers
OE Match replacement engine timing chain - also referred to as the camshaft/intermediate shaft timing chain - designed to replicate the original Porsche timing chain used in the engine timing drive system of early 911 (996) and Boxster engines.
2 per engine. Sold each.
Fits:
Porsche 996 3.4L C2/C4 1998 - 2001
Porsche 986 Boxster 1997 - 2004
Diagram Ref No 26.
The timing chain ensures precise mechanical synchronization between critical rotating components of the engine - primarily the crankshaft and camshafts (and in some layouts, the intermediate shaft). It maintains the correct timing of valve opening and closing events relative to piston position, which is vital for efficient combustion, smooth engine operation, and proper power delivery.
Function:
• Synchronises rotation of the crankshaft and camshafts
• Maintains correct valve timing for intake and exhaust events
• Transfers mechanical drive through intermediate gears/shafts
• Supports reliable engine performance and emissions control.
A worn or elongated timing chain can cause timing errors, engine noise, rough running, or in more severe cases, engine damage if the timing relationship is lost.
The timing chain is a critical engine component. Over long service intervals and high mileage, the chain can stretch or wear, leading to slack, improper timing, and noisy operation. If not addressed, timing chain issues can cause:
• Engine noise (chain rattle)
• Poor idle and power delivery
• Timing inaccuracies affecting combustion
• Potential engine damage if timing is lost.
Replacing worn chains with an OE Match unit helps ensure accurate timing, preserves engine performance, and protects other internal engine components.
When to replace. Replace the timing chain when:
• There is rattling or slapping noise from the timing cover area
• Timing chain slack is detected in inspection
• You are performing an engine rebuild or overhaul
• Timing tensioner or guides show wear
• Irregular idle or misfires suggest timing drift
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517753
99610517753
99610517752
The product you are viewing cross references to these numbers
Price: €70.20
In stock
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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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