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Chains & Tensioners
By OE Match
- 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 MKII GT2 RS 2011-13
The Variable Valve Timing (VVT) solenoid (also called a camshaft adjustment valve or oil control solenoid) controls oil flow to the camshaft system, adjusting valve timing in response to engine speed, load, and driving conditions. By continuously optimising camshaft position, it enhances engine efficiency, performance, and emissions. Designed to exacting standards, it delivers smoother idle, improved torque and fuel economy, and reliable long-term operation with a precise, direct fit.
Sold each, 2 required per vehicle.
Fits:
Porsche 996 C2 3.6L 09/01 - 2005 (for engine code M96.03)
Porsche 996 C4 3.6L 09/01 - 2005 (for engine code M96.03)
Porsche 996 C4S 3.6L 09/01 - 2005 (for engine code M96.03)
Porsche 997.1 C2 / C4 3.6L 2005 (up to engine number 695 08637)
Porsche 997.1 C2S / C4S 3.8L 2005 (up to engine number 685 11779)
Porsche 997.1 Turbo 2007 - 2009
Porsche 997.2 GT2 RS 2011 - 2013
Diagram ref no 40
Core Functions:
• Regulates the flow of pressurized oil to the camshaft phaser or actuator.
• Adjusts valve timing dynamically to match engine speed, load, and throttle input.
• Optimizes power delivery, fuel consumption, and emission control.
• Ensures smooth idle and responsive acceleration.
• Helps reduce exhaust emissions and improve combustion stability.
When working correctly, it keeps the engine running at peak precision, balancing performance and efficiency seamlessly.
Over time, the variable valve timing solenoid can degrade due to contamination, wear, or electrical faults. Common causes include:
• Oil contamination or sludge buildup blocking the internal oil control passages.
• Low oil quality or irregular oil changes, which reduce hydraulic efficiency.
• Electrical faults within the solenoid connector or wiring harness.
• Mechanical sticking of the plunger or valve spool, preventing proper timing adjustment.
• Prolonged engine overheating causing internal seal failure.
Failure Symptoms:
Check Engine Light (CEL) or camshaft timing fault codes. Rough idle or engine stalling. Reduced power, sluggish acceleration, or poor fuel economy. Rattling noise from the timing area. Higher emissions or failed MOT/inspection.
Replacing a worn or faulty VVT solenoid restores your engine’s optimal performance and efficiency.
Key Benefits of Replacement:
• Restores precise valve timing for consistent torque and smooth power delivery.
• Improves fuel economy by optimizing combustion under all loads.
• Eliminates rough idle and hesitation during acceleration.
• Prevents costly engine damage caused by improper timing or lubrication.
• Reduces emissions and ensures compliance with modern environmental standards.
• Ensures long-term reliability and consistency under demanding driving conditions.
A fresh VVT solenoid returns your vehicle to the refined performance level it was designed to deliver, ensuring precision control and reliability mile after mile.
Advantages at a Glance:
• Precision oil flow control for accurate camshaft timing
• Improved engine performance and throttle response
• Smoother idle and reduced vibration
• Enhanced fuel efficiency and reduced emissions
• Durable construction with long lifespan
• Plug-and-play compatibility for quick installation
• Developed to deliver original-quality performance at excellent value
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610530105
The product you are viewing cross references to these numbers
- 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
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
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16

Fits:
Porsche 987.2 Boxster
Porsche 981 Boxster
Porsche 987C.2 Cayman
Porsche 981C Cayman
Porsche 997.2
Porsche 991.1
Contains
2x 9A110514203
1x 9A110523302
1x 9A110523502
2x 9A110515304
2x 9A110515504
2x 9A110515703
1x 9A110522502
1x 9A110514702
1x 9A110514802
2x 9A110510102
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110514203
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16

2x Chain links 142 Closed chain,
1x Chain links 60 Closed chain,
2x Tensioner, timing chain
Fits:
Porsche 987.2 Boxster
Porsche 981 Boxster
Porsche 987C.2 Cayman
Porsche 981C Cayman
Porsche 997.2
Porsche 991.1
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110514203
The product you are viewing cross references to these numbers
- 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
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
- 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
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
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16

Fits:
Porsche 987.2 Boxster
Porsche 981 Boxster
Porsche 987C.2 Cayman
Porsche 981C Cayman
Porsche 997.2
Porsche 991.1
Price is for each.
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110514203
The product you are viewing cross references to these numbers
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
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.
- 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
- 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