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Timing chain. Porsche 996 / 986 Boxster - 99610517753
99610517753/2
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.
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Related, superseded, cross reference or alternative numbers for comparison.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
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.
• 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.
• 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
• 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: £60.00
In stock
Related products
Timing Chain. Porsche 987.2 & 981 Boxster / 987C.2 & 981C Cayman / 997.2 / 991.1
Code: 9A110514203/1
Vehicle Group
- 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
Information
Timing chain
OE Match timing chain for Porsche Boxster, Cayman, 997, and 991 models. This replacement timing chain helps maintain accurate camshaft timing and reliable engine operation.
Sold individually
Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 987C.2 Cayman 2009 - 2012
Porsche 981C Cayman 2013 - 2016
Porsche 997.2 2009 - 2012
Porsche 991.1 2012 - 2016
Diagram ref no 1
The timing chain synchronises engine rotation between the crankshaft and camshafts. Correct timing chain operation is essential for accurate valve timing, smooth running, engine performance, and long-term reliability.
Functions
• Replaces the engine timing chain
• Helps synchronise crankshaft and camshaft movement
• Supports accurate valve timing
• Helps maintain smooth engine running and performance
• Used during timing chain, camshaft drive, or engine rebuild service
• Replaces stretched, noisy, worn, or damaged timing chains
• OE Match replacement for Porsche engine timing system repair.
Why Replace This Part?
Timing chains are highly loaded engine components and can wear, stretch, become noisy, or suffer damage over time. A worn or stretched timing chain may cause timing noise, poor running, fault codes, reduced performance, or incorrect camshaft timing. Replacing the timing chain helps restore correct engine timing and protects related timing system components.
When to Replace This Part
• Timing chain noise or rattle is present
• Timing chain stretch is detected
• Camshaft timing faults or related engine codes are present
• Engine performance is reduced or running is uneven
• Timing chain guides, tensioners, or camshaft drive parts are being replaced
• Engine rebuild or major timing service is being carried out
• Preventative replacement is required during Porsche engine maintenance
Where it fits on the car
This timing chain fits within the engine timing / camshaft drive system on Porsche Boxster, Cayman, 997, and 991 models. Exact chain position can vary depending on engine type and timing layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110514203
The product you are viewing cross references to these numbers
OE Match timing chain for Porsche Boxster, Cayman, 997, and 991 models. This replacement timing chain helps maintain accurate camshaft timing and reliable engine operation.
Sold individually
Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 987C.2 Cayman 2009 - 2012
Porsche 981C Cayman 2013 - 2016
Porsche 997.2 2009 - 2012
Porsche 991.1 2012 - 2016
Diagram ref no 1
The timing chain synchronises engine rotation between the crankshaft and camshafts. Correct timing chain operation is essential for accurate valve timing, smooth running, engine performance, and long-term reliability.
Functions
• Replaces the engine timing chain
• Helps synchronise crankshaft and camshaft movement
• Supports accurate valve timing
• Helps maintain smooth engine running and performance
• Used during timing chain, camshaft drive, or engine rebuild service
• Replaces stretched, noisy, worn, or damaged timing chains
• OE Match replacement for Porsche engine timing system repair.
Why Replace This Part?
Timing chains are highly loaded engine components and can wear, stretch, become noisy, or suffer damage over time. A worn or stretched timing chain may cause timing noise, poor running, fault codes, reduced performance, or incorrect camshaft timing. Replacing the timing chain helps restore correct engine timing and protects related timing system components.
When to Replace This Part
• Timing chain noise or rattle is present
• Timing chain stretch is detected
• Camshaft timing faults or related engine codes are present
• Engine performance is reduced or running is uneven
• Timing chain guides, tensioners, or camshaft drive parts are being replaced
• Engine rebuild or major timing service is being carried out
• Preventative replacement is required during Porsche engine maintenance
Where it fits on the car
This timing chain fits within the engine timing / camshaft drive system on Porsche Boxster, Cayman, 997, and 991 models. Exact chain position can vary depending on engine type and timing layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110514203
9A110514203
9A110514202
The product you are viewing cross references to these numbers
Price: £66.00
In stock
Vehicle Group
- 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
Information
Timing Chain Kit for Camshaft & Oil Pump
OE Match engine timing chain kit for selected Porsche
Boxster, Cayman, 997 and 991 models, providing the principal chain components
required when overhauling the camshaft timing and oil pump drive systems.
Fits:
- 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
Diagram ref no 1
The kit contains two 142-link closed timing chains, one 60-link closed chain and two timing chain tensioners. It is suitable for selected Porsche 987.2, 981, 997.2 and 991.1 engines.
What Does the Timing Chain Kit Do?
The camshaft timing chains transfer rotation from the crankshaft to the camshafts, keeping valve operation correctly synchronised with piston movement.
The oil pump drive chain transfers mechanical drive to the oil pump, which circulates pressurised engine oil through the lubrication system.
Both systems are critical to reliable engine operation.
Why Do Timing Chains and Tensioners Wear?
Timing components operate continuously whenever the engine is running. Over time, wear can develop through:
High mileage Chain and tensioner wear Poor or infrequent oil servicing Contaminated engine oil Incorrect chain tension Wear to associated guides or sprockets Previous internal engine problemsA worn timing system can produce chain noise or timing-related faults and, in severe cases, may affect correct camshaft timing.
When Should They Be Replaced?
Timing components should be inspected if there is abnormal chain noise, timing-related fault codes, excessive chain wear or evidence of tensioner problems.
They should also be carefully assessed during an engine rebuild or other major work where the timing system is already accessible.
Associated guides, sprockets and other timing components should be inspected at the same time.
Checks During Installation
When replacing the timing chains, also inspect:
- Timing chain guide rails
- Chain sprockets
- Camshaft timing components
- Oil pump drive components
- Tensioner contact surfaces
- Engine oil condition
- Oil passages
- Related seals and fasteners
Correct engine timing must be established using the appropriate Porsche engine timing procedure and specialist tools.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110514203
9A110514203
9A110514202
9A110523302
9A110515703
9A110515702
9A110515704
0PB109507A
The product you are viewing cross references to these numbers
Price: £197.00
In stock
Vehicle Group
- 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
Information
Engine timing Chain Kit for camshaft and oil pump gears
This OE Match engine timing chain kit provides the listed components for the camshaft timing and oil pump drive systems used across selected Porsche 987.2, 981, 997.2 and 991.1 engines. It is intended for timing-system overhaul work where associated chains, guide components and sprockets are being renewed together.
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
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
This OE Match engine timing chain kit provides the listed components for the camshaft timing and oil pump drive systems used across selected Porsche 987.2, 981, 997.2 and 991.1 engines. It is intended for timing-system overhaul work where associated chains, guide components and sprockets are being renewed together.
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
Diagram ref no 1
What This Product Does
The timing chains transfer crankshaft rotation to the camshafts so that valve operation remains correctly synchronised with piston movement. The separate oil pump chain and sprocket components transmit drive from the crankshaft to the engine oil pump.
Functions
- Connects the crankshaft and camshaft timing assemblies
- Transfers drive to the engine oil pump
- Supports controlled chain travel through the supplied rails
- Maintains the intended relationship between the chains and sprockets
- Allows related timing-drive wear components to be renewed during the same repair
Symptoms of Fault
- Increasing chain rattle during cold starting
- Persistent mechanical noise from the timing-chain area
- Timing deviation or camshaft correlation faults
- Rough running associated with timing drift
- Visible wear or damage to chain guide components
- Plastic or metallic debris discovered during engine inspection
Why Replacement Matters
Chains, guides, tensioning components and sprockets operate as a connected system. Renewing worn parts during an engine rebuild or diagnosed timing repair helps restore controlled chain movement and accurate valve timing while reducing the likelihood of repeat dismantling caused by retained wear components. Correct engine locking, timing procedures and tightening specifications must be followed during installation.
FAQs
- Does the kit include oil pump drive parts?
Yes. The supplied inventory includes the oil pump chain, tensioner blade and oil pump sprocket. - Are both camshaft timing chains supplied?
Yes. The kit contains two 9A110514203 chains. - Should every listed component be replaced together?
The required repair scope depends on inspection and diagnosis, although renewing accessible matched wear components can help avoid repeated labour. - Is specialist installation recommended?
Yes. Timing work requires engine-specific locking equipment, assembly procedures and torque settings.
Check fitment for your specific vehicle, model year and engine before ordering.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110514203
9A110514203
9A110514202
47700
90001164
9A110523302
9A110523502
9A110515304
9A110515504
9A110515703
9A110522502
9A110514702
9A110514802
9A110510102
The product you are viewing cross references to these numbers
Price: £499.00
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