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Guide rail kit. Porsche 986 / 996 - 99610525301
99610525301/1
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Related, superseded, cross reference or alternative numbers for comparison.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Related, superseded, cross reference or alternative numbers for comparison.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: €29.75
In stock
Also found on these pages
Related products
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 - OPEN Type
This OE Match timing chain is an open-type replacement camshaft timing chain for Porsche 996 and 986 Boxster engines. It is designed to match the original-style fit and function, helping maintain correct valve timing and reliable engine operation.
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 links the crankshaft and camshaft drive system, keeping the camshafts synchronised with engine rotation. This ensures the intake and exhaust valves open and close at the correct time, supporting smooth running, efficient combustion, and dependable engine performance.
Functions
• Drives the camshaft timing system
• Keeps crankshaft and camshaft timing synchronised
• Supports correct intake and exhaust valve timing
• Helps maintain smooth engine running and performance
• Replaces stretched, worn, noisy, or damaged timing chains
• Open-type design for service and engine rebuild applications
• OE Match replacement for timing chain repair or engine overhaul.
Why Replace This Part?
Timing chains are exposed to constant load, oil, heat, and high-speed operation. Over time, the chain can stretch, wear, become noisy, or affect accurate camshaft timing. A worn timing chain may cause rattling noises, poor running, timing faults, reduced performance, or engine management warning lights. Replacing the chain helps restore timing accuracy and supports long-term engine reliability.
When to Replace This Part
• The timing chain is stretched, worn, noisy, or damaged
• There is rattling from the timing chain area
• Camshaft timing faults or related diagnostic codes are present
• The engine is being rebuilt or overhauled
• Chain guides, tensioners, sprockets, or rails are being replaced
• The timing system has been dismantled for repair
• As preventative replacement during major engine service
Where it fits on the car
This timing chain fits inside the engine timing chain system, forming part of the camshaft drive assembly. It runs within the engine timing case area and works with the chain guides, tensioners, sprockets, and camshaft drive components.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517753
The product you are viewing cross references to these numbers
This OE Match timing chain is an open-type replacement camshaft timing chain for Porsche 996 and 986 Boxster engines. It is designed to match the original-style fit and function, helping maintain correct valve timing and reliable engine operation.
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 links the crankshaft and camshaft drive system, keeping the camshafts synchronised with engine rotation. This ensures the intake and exhaust valves open and close at the correct time, supporting smooth running, efficient combustion, and dependable engine performance.
Functions
• Drives the camshaft timing system
• Keeps crankshaft and camshaft timing synchronised
• Supports correct intake and exhaust valve timing
• Helps maintain smooth engine running and performance
• Replaces stretched, worn, noisy, or damaged timing chains
• Open-type design for service and engine rebuild applications
• OE Match replacement for timing chain repair or engine overhaul.
Why Replace This Part?
Timing chains are exposed to constant load, oil, heat, and high-speed operation. Over time, the chain can stretch, wear, become noisy, or affect accurate camshaft timing. A worn timing chain may cause rattling noises, poor running, timing faults, reduced performance, or engine management warning lights. Replacing the chain helps restore timing accuracy and supports long-term engine reliability.
When to Replace This Part
• The timing chain is stretched, worn, noisy, or damaged
• There is rattling from the timing chain area
• Camshaft timing faults or related diagnostic codes are present
• The engine is being rebuilt or overhauled
• Chain guides, tensioners, sprockets, or rails are being replaced
• The timing system has been dismantled for repair
• As preventative replacement during major engine service
Where it fits on the car
This timing chain fits inside the engine timing chain system, forming part of the camshaft drive assembly. It runs within the engine timing case area and works with the chain guides, tensioners, sprockets, and camshaft drive components.
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: €71.40
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: €71.40
In stock
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: €207.66
In stock