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Chains & Tensioners
By OE Match
Vehicle Group
- 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 3.6L 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 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Carrera GT 2003-06
Information
Actuator Camshaft. A solenoid component for the Variable Camshaft Timing (VarioCam Plus) system, used to adjust camshaft timing for optimal performance. Serves the front (intake/exhaust timing) of the VarioCam system, typically requiring two units per engine (one per bank)
Fits:
Porsche 996 C2 / C4 / C4S - 2002 to 2005
Porsche 986 Boxster 2.7ltr / 3.2ltr - 1997 to 2004
Porsche 987 Boxster - 2005 to 2008
Porsche 987C Cayman - 2005 to 2008
Porsche 997 - 2005 to 2008
Porsche Carrera Gt - 2004 to 2006
Diagram Ref No 41
This product supersedes Porsche's old part numbers:
99610530302, 99610530303, 99610530304, 99610530305, 99610530306, 99610530307
Common issues or symptoms:
Rough idle / misfires: Faulty actuator disrupts precise valve timing, leading to uneven idling or misfires.
Reduced engine performance: Loss of power or hesitation at certain RPMs can be linked to improper camshaft adjustment Check Engine Light (CEL), often triggered when the engine control unit (ECU) detects misalignment or malfunction in camshaft timing - very common with actuator failure.
Faulty actuator disrupts precise valve timing, leading to uneven idling or misfires Diagnostic Trouble Codes (DTCs): Codes like P0010, P0011, P0012, P0013, P0014 often point to camshaft actuator or timing issues. They indicate conditions such as stuck timing advance/retard, or electrical faults in the actuator circuit Failure Causes: Oil contamination or sludge can clog the actuator, impairing function. Electrical problems such as wiring degradation or poor connector contact can impede correct activation
Diagnostic & repair advice check oil quality and change intervals - fresh, clean oil helps prevent buildup that hampers actuator performance scan for and interpret fault codes using an OBD-II scanner to pinpoint actuator failure or control circuit issues Inspect connectors and wiring for corrosion or looseness Replace defective solenoid(s) with OEM or high-quality equivalents if internal stick or mechanical failure is suspected.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610530307
The product you are viewing cross references to these numbers
Fits:
Porsche 996 C2 / C4 / C4S - 2002 to 2005
Porsche 986 Boxster 2.7ltr / 3.2ltr - 1997 to 2004
Porsche 987 Boxster - 2005 to 2008
Porsche 987C Cayman - 2005 to 2008
Porsche 997 - 2005 to 2008
Porsche Carrera Gt - 2004 to 2006
Diagram Ref No 41
This product supersedes Porsche's old part numbers:
99610530302, 99610530303, 99610530304, 99610530305, 99610530306, 99610530307
Common issues or symptoms:
Rough idle / misfires: Faulty actuator disrupts precise valve timing, leading to uneven idling or misfires.
Reduced engine performance: Loss of power or hesitation at certain RPMs can be linked to improper camshaft adjustment Check Engine Light (CEL), often triggered when the engine control unit (ECU) detects misalignment or malfunction in camshaft timing - very common with actuator failure.
Faulty actuator disrupts precise valve timing, leading to uneven idling or misfires Diagnostic Trouble Codes (DTCs): Codes like P0010, P0011, P0012, P0013, P0014 often point to camshaft actuator or timing issues. They indicate conditions such as stuck timing advance/retard, or electrical faults in the actuator circuit Failure Causes: Oil contamination or sludge can clog the actuator, impairing function. Electrical problems such as wiring degradation or poor connector contact can impede correct activation
Diagnostic & repair advice check oil quality and change intervals - fresh, clean oil helps prevent buildup that hampers actuator performance scan for and interpret fault codes using an OBD-II scanner to pinpoint actuator failure or control circuit issues Inspect connectors and wiring for corrosion or looseness Replace defective solenoid(s) with OEM or high-quality equivalents if internal stick or mechanical failure is suspected.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610530307
99610530306
99610530303
99610530305
99610530307
99610530304
99610530302
The product you are viewing cross references to these numbers
Price: £174.50
In stock
Vehicle Group
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Information
Chain guide rail.
This guide rail ensures the timing chain follows the correct path, maintaining chain alignment and tension over the life of the engine. The guide is engineered to resist wear from chain contact, vibration, thermal expansion and age. It installs into the existing timing cover without modification. It is used on the left/right-hand / lower side (depending on engine layout) and works in conjunction with the chain tensioners and other guide rails to keep valve timing accurate and engine operation smooth.
Fits:
Porsche 996 Turbo 2001 - 2005
Porsche 996 GT3 2000 - 2005
Porsche 997 Turbo 2007 - 2011
Porsche 997 GT3 2007 - 2011
Diagram ref no 21
Ideal for engine rebuilds, timing-chain replacements, or preventive maintenance on high-mileage engines.
This chain guide rail:
• Guides the timing chain to follow the correct path between crankshaft, camshafts, and intermediate shafts - ensuring synchronised valve timing.
• Maintains chain tension and alignment under load and throughout thermal cycles, preventing chain slippage or jumping that could damage the engine.
• Reduces noise, rattles, and wear that occur when the chain rubs against incorrect or worn surfaces.
• Serves as a critical component for overall engine longevity and reliability, especially in high-mileage or performance-oriented engines.
Timing-chain guide rails wear over time due to constant metal-to-plastic/rubber contact, heat, and vibration. A worn guide rail can lead to:
• Chain misalignment, slippage or jumping - risking engine timing errors, valve-to-piston contact, or catastrophic engine damage
• Excessive timing noise, rattling, or vibration
• Premature wear on chain, sprockets, and tensioners - leading to costly repairs.
Replacing with a correctly spec’d guide rail restores proper chain pathing, prolongs timing-system life, and helps avoid severe engine damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610516
The product you are viewing cross references to these numbers
This guide rail ensures the timing chain follows the correct path, maintaining chain alignment and tension over the life of the engine. The guide is engineered to resist wear from chain contact, vibration, thermal expansion and age. It installs into the existing timing cover without modification. It is used on the left/right-hand / lower side (depending on engine layout) and works in conjunction with the chain tensioners and other guide rails to keep valve timing accurate and engine operation smooth.
Fits:
Porsche 996 Turbo 2001 - 2005
Porsche 996 GT3 2000 - 2005
Porsche 997 Turbo 2007 - 2011
Porsche 997 GT3 2007 - 2011
Diagram ref no 21
Ideal for engine rebuilds, timing-chain replacements, or preventive maintenance on high-mileage engines.
This chain guide rail:
• Guides the timing chain to follow the correct path between crankshaft, camshafts, and intermediate shafts - ensuring synchronised valve timing.
• Maintains chain tension and alignment under load and throughout thermal cycles, preventing chain slippage or jumping that could damage the engine.
• Reduces noise, rattles, and wear that occur when the chain rubs against incorrect or worn surfaces.
• Serves as a critical component for overall engine longevity and reliability, especially in high-mileage or performance-oriented engines.
Timing-chain guide rails wear over time due to constant metal-to-plastic/rubber contact, heat, and vibration. A worn guide rail can lead to:
• Chain misalignment, slippage or jumping - risking engine timing errors, valve-to-piston contact, or catastrophic engine damage
• Excessive timing noise, rattling, or vibration
• Premature wear on chain, sprockets, and tensioners - leading to costly repairs.
Replacing with a correctly spec’d guide rail restores proper chain pathing, prolongs timing-system life, and helps avoid severe engine damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610516
21260
21261
99610516670
99610516770
The product you are viewing cross references to these numbers
Prices from: £25.00
Vehicle Group
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
Information
Tensioner Blade. Porsche 996 Turbo / 996 GT3 / 997 GT3
Fits:
Porsche 996 Turbo 2001-05
Porsche 996 GT3 2000-05
Porsche 997 GT3 2007-11
Diagram Ref No 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610516571
The product you are viewing cross references to these numbers
Fits:
Porsche 996 Turbo 2001-05
Porsche 996 GT3 2000-05
Porsche 997 GT3 2007-11
Diagram Ref No 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610516571
99610516571
The product you are viewing cross references to these numbers
Price: £36.91
In stock
Vehicle Group
- Porsche 996 TURBO 2000-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
Information
Timing chain tensioner for camshaft.
Fits:
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05
Porsche 997.1 GT3 2007>>
Porsche 959
Click 'Zoom in' for large parts diagram.
Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95910505204
The product you are viewing cross references to these numbers
Fits:
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05
Porsche 997.1 GT3 2007>>
Porsche 959
Click 'Zoom in' for large parts diagram.
Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95910505204
95910505201
959105052014
The product you are viewing cross references to these numbers
Price: £215.00
In stock
Vehicle Group
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Information
Timing chain tensioner. LEFT.
Fits:
Porsche 997.1 Turbo / GT2 2007-09
Porsche 997.2 Turbo / GT2 2010-13
Porsche 997 GT3 2007-11
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710506171
The product you are viewing cross references to these numbers
Fits:
Porsche 997.1 Turbo / GT2 2007-09
Porsche 997.2 Turbo / GT2 2010-13
Porsche 997 GT3 2007-11
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710506171
95910505103
99710506171
99710506170
The product you are viewing cross references to these numbers
Price: £190.00
Delayed delivery
Vehicle Group
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Information
Timing chain tensioner. Cyl. 4-6. RIGHT.
This OE Match timing chain tensioner is a direct replacement for the original Porsche component fitted to the right-hand cylinder bank (cylinders 4–6). It maintains proper tension on the engine timing chain to ensure precise camshaft timing and smooth engine operation.
Fits:
Porsche 997.1 Turbo / GT2 2007 - 2009
Porsche 997.2 Turbo / GT2 2010 - 2013
Porsche 997 GT3 2007 - 2011
Diagram ref no 10
The timing chain tensioner maintains the correct tension on the engine timing chain, ensuring accurate synchronisation between the crankshaft and camshafts. This helps the engine run smoothly, prevents chain slack, and protects against timing-related engine damage.
Function
• Maintains correct timing chain tension
• Prevents chain slack and timing fluctuation
• Ensures accurate camshaft and crankshaft synchronisation
• Reduces timing chain vibration and noise
• Supports reliable high-performance engine operation
Position: Right side / cylinders 4–6
OE reference: 99710506271
Supersedes: 99710506270, 95910505203
Recommended gasket/seal: 99610517270 (sold separately)
Quantity required: 1 per engine side
Over time, timing chain tensioners can wear internally or lose hydraulic pressure efficiency. A failing tensioner may cause timing chain noise, inaccurate valve timing, or excessive chain movement, potentially leading to severe engine damage. Replacing a worn tensioner restores correct timing stability, protects internal engine components, and maintains performance reliability.
When to replace
• Rattling noise from timing chain area during startup
• Timing-related fault codes or irregular engine timing
• During engine rebuild or timing system service
• Excessive timing chain slack detected
• Oil leakage around tensioner housing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710506271
The product you are viewing cross references to these numbers
This OE Match timing chain tensioner is a direct replacement for the original Porsche component fitted to the right-hand cylinder bank (cylinders 4–6). It maintains proper tension on the engine timing chain to ensure precise camshaft timing and smooth engine operation.
Fits:
Porsche 997.1 Turbo / GT2 2007 - 2009
Porsche 997.2 Turbo / GT2 2010 - 2013
Porsche 997 GT3 2007 - 2011
Diagram ref no 10
The timing chain tensioner maintains the correct tension on the engine timing chain, ensuring accurate synchronisation between the crankshaft and camshafts. This helps the engine run smoothly, prevents chain slack, and protects against timing-related engine damage.
Function
• Maintains correct timing chain tension
• Prevents chain slack and timing fluctuation
• Ensures accurate camshaft and crankshaft synchronisation
• Reduces timing chain vibration and noise
• Supports reliable high-performance engine operation
Position: Right side / cylinders 4–6
OE reference: 99710506271
Supersedes: 99710506270, 95910505203
Recommended gasket/seal: 99610517270 (sold separately)
Quantity required: 1 per engine side
Over time, timing chain tensioners can wear internally or lose hydraulic pressure efficiency. A failing tensioner may cause timing chain noise, inaccurate valve timing, or excessive chain movement, potentially leading to severe engine damage. Replacing a worn tensioner restores correct timing stability, protects internal engine components, and maintains performance reliability.
When to replace
• Rattling noise from timing chain area during startup
• Timing-related fault codes or irregular engine timing
• During engine rebuild or timing system service
• Excessive timing chain slack detected
• Oil leakage around tensioner housing
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710506271
99710506271
99710506270
95910505203
The product you are viewing cross references to these numbers
Price: £191.34
In stock
DISPLAYING 1 to 6 (of 6 products)
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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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