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Timing Chain. Porsche 997 Turbo/GT2 MKI / MKII 3.6L M97.70 2007-11 - 99710555171
99710555171
Vehicle Group
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
Information
Timing Chain.
Genuine Porsche duplex timing chain for 911 997 Turbo/GT2 MKI / MKII 3.6L M97.70 2006-2011 – replaces stretched or worn chain to restore precise engine timing.
Sold Each.
x2 Required Per Car.
Fits:
Diagram Ref No 29
What This Product Does:
Symptoms & When You Should Replace:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710555171
The product you are viewing cross references to these numbers
Genuine Porsche duplex timing chain for 911 997 Turbo/GT2 MKI / MKII 3.6L M97.70 2006-2011 – replaces stretched or worn chain to restore precise engine timing.
Sold Each.
x2 Required Per Car.
Fits:
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Turbo 2010-11
- Porsche 997 MKII GT2 RS 2011-11
Diagram Ref No 29
What This Product Does:
- The timing chain transfers rotational motion from the crankshaft or intermediate shaft to the camshaft(s) (and/or to the secondary shaft) allowing valves to open and close in synchrony with piston movement.
- A “duplex” chain (two rows of links) provides greater strength and durability under the high loads and high engine speeds typical of a Porsche 911 performance engine.
- Because the chain drives critical timing, any slack, wear or movement will affect valve timing, ignition timing, engine management, and can result in noise, performance loss or engine damage.
- In this context, this chain is often replaced as part of a full timing drive overhaul (including guides, rails, tensioners) rather than alone.
Symptoms & When You Should Replace:
- Rattling or clattering noise from the front of the engine (timing cover area), often heard at idle or on start-up — typical of chain slack.
- Check engine light related to camshaft or timing chain position sensors, or codes showing timing deviation.
- Loss of engine power, mis-firing, rough running — could indicate timing drift due to chain wear.
- High mileage or older engine with original chain: preventive replacement recommended to avoid catastrophic failure.
- During major engine service (removing timing cover, replacing chains/guides) — because labour is high, replacing the chain proactively makes sense.
- If inspection reveals visible wear: elongated chain links, damaged chain guides or missing/broken tensioner components.
Why Replacement Matters:
- Protects the entire engine: A failed timing chain can lead to valve-to-piston contact, major damage and extremely costly repairs — replacing the chain is preventive.
- Restores proper timing & performance: A new chain ensures correct valve and ignition timing, helping engine run smoothly, powerfully and reliably.
- Eliminates noise & wear risk: Worn chains and guides cause noise and degrade timing drive integrity — a new chain reduces risk and improves sound.
- Cost-efficient when engine is opened: Since accessing the chain involves removing major parts (timing cover, possibly front of engine), replacing the chain while it’s open saves re-labour.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710555171
99710555171
The product you are viewing cross references to these numbers
Price: €436.28
In stock
Related products
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Information
Camshaft timing chain. SPLIT TYPE.
Chain Type: Duplex,
Timing Chain Size: D67ZN
No. of chain links: 98
Fits:
Porsche 911 1965 - 1989
Porsche 964 1991 - 1993
TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. Each car has two.
This OE Match camshaft timing chain is a replacement split-type timing chain for air-cooled Porsche 911 engines. It is designed to match the original-style fit and function, helping maintain correct camshaft timing and reliable valve train operation.
The camshaft timing chain links the crankshaft drive to the camshaft drive system, ensuring that the camshafts rotate in precise timing with the engine crankshaft. This correct timing allows the engine valves to open and close at the right moment for smooth running, correct combustion, and dependable engine performance.
Functions
• Drives the camshaft timing system
• Helps keep crankshaft and camshaft timing synchronised
• Supports correct valve opening and closing timing
• Helps maintain smooth engine running and performance
• Provides a split-type design for easier installation during service
• Replaces stretched, worn, noisy, or damaged timing chains
• OE Match replacement for engine rebuilds and timing chain repairs
Why Replace This Part?
Camshaft timing chains are subject to constant load, heat, oil exposure, and high-speed operation. Over time, the chain can stretch, wear, become noisy, or affect accurate cam timing. A worn timing chain may cause rattling noises, poor running, incorrect valve timing, or reduced engine performance. Replacing the chain during engine service or rebuild helps restore timing accuracy and long-term reliability.
When to Replace This Part
• The timing chain is stretched, worn, noisy, or damaged
• There is rattling from the cam chain housing area
• Camshaft timing is being reset or corrected
• The engine is being rebuilt or overhauled
• Chain ramps, sprockets, or tensioners are being replaced
• The timing chain covers or camshaft housings have been removed
• As preventative replacement during major engine service.
Where it fits on the car
This timing chain fits inside the engine timing chain housing, forming part of the camshaft drive system. It runs between the crankshaft-driven intermediate shaft sprocket and the camshaft sprocket assembly, depending on the engine layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110552951
The product you are viewing cross references to these numbers
Chain Type: Duplex,
Timing Chain Size: D67ZN
No. of chain links: 98
Fits:
Porsche 911 1965 - 1989
Porsche 964 1991 - 1993
TIP! If you detect a chain clap or rattling noise in the engine, your timing chain may be worn or stretched and needs replacing. Each car has two.
This OE Match camshaft timing chain is a replacement split-type timing chain for air-cooled Porsche 911 engines. It is designed to match the original-style fit and function, helping maintain correct camshaft timing and reliable valve train operation.
The camshaft timing chain links the crankshaft drive to the camshaft drive system, ensuring that the camshafts rotate in precise timing with the engine crankshaft. This correct timing allows the engine valves to open and close at the right moment for smooth running, correct combustion, and dependable engine performance.
Functions
• Drives the camshaft timing system
• Helps keep crankshaft and camshaft timing synchronised
• Supports correct valve opening and closing timing
• Helps maintain smooth engine running and performance
• Provides a split-type design for easier installation during service
• Replaces stretched, worn, noisy, or damaged timing chains
• OE Match replacement for engine rebuilds and timing chain repairs
Why Replace This Part?
Camshaft timing chains are subject to constant load, heat, oil exposure, and high-speed operation. Over time, the chain can stretch, wear, become noisy, or affect accurate cam timing. A worn timing chain may cause rattling noises, poor running, incorrect valve timing, or reduced engine performance. Replacing the chain during engine service or rebuild helps restore timing accuracy and long-term reliability.
When to Replace This Part
• The timing chain is stretched, worn, noisy, or damaged
• There is rattling from the cam chain housing area
• Camshaft timing is being reset or corrected
• The engine is being rebuilt or overhauled
• Chain ramps, sprockets, or tensioners are being replaced
• The timing chain covers or camshaft housings have been removed
• As preventative replacement during major engine service.
Where it fits on the car
This timing chain fits inside the engine timing chain housing, forming part of the camshaft drive system. It runs between the crankshaft-driven intermediate shaft sprocket and the camshaft sprocket assembly, depending on the engine layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110552951
91110552950
90110552950
91110552951
The product you are viewing cross references to these numbers
Price: €50.45
In stock
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Information
Timing Chain Split Link.
The OE Match Timing Chain Split Link is a precision-engineered replacement connecting link designed for Porsche timing chain systems. This small but essential component joins the ends of the timing chain, allowing secure installation and reliable operation of the engine's valve timing mechanism.
Fits:
Manufactured to OE specifications for strength, fit and durability, the split link is designed to withstand the constant loads, temperatures and operating conditions found within the timing chain assembly. It provides a secure connection that helps maintain accurate timing chain operation and overall engine reliability.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
911327339990
The product you are viewing cross references to these numbers
The OE Match Timing Chain Split Link is a precision-engineered replacement connecting link designed for Porsche timing chain systems. This small but essential component joins the ends of the timing chain, allowing secure installation and reliable operation of the engine's valve timing mechanism.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Manufactured to OE specifications for strength, fit and durability, the split link is designed to withstand the constant loads, temperatures and operating conditions found within the timing chain assembly. It provides a secure connection that helps maintain accurate timing chain operation and overall engine reliability.
What This Product Does:
- Connects and secures the ends of the engine timing chain.
- Allows installation or repair of the timing chain assembly.
- Maintains continuous timing chain operation.
- Supports accurate camshaft and crankshaft synchronisation.
- Helps ensure precise valve timing throughout the engine's operating range.
- Contributes to smooth engine performance and reliability.
Symptoms Of Wear Or Failure:
- Timing chain noise or rattling.
- Excessive timing chain slack.
- Visible wear or damage to the link components.
- Accelerated timing chain wear.
- Inconsistent engine timing.
- Reduced engine performance.
- Difficulty maintaining proper chain tension.
- Potential timing chain failure in severe cases.
Why Replacement Matters:
- The timing chain system is one of the most critical components within the engine, controlling the relationship between the crankshaft and camshafts. Although small, the split link plays a vital role in maintaining the integrity of the entire timing chain assembly.
- Over time, wear, corrosion, fatigue or damage during servicing can compromise the strength of the split link. A weakened or damaged link may accelerate chain wear or increase the risk of timing chain failure. Because timing-related failures can result in significant engine damage and costly repairs, replacing worn timing chain components during maintenance or engine rebuilds is highly recommended.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
911327339990
911327339990
90110553000
91110552951
91110552950
The product you are viewing cross references to these numbers
Price: €3.54
In stock
Vehicle Group
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
Information
Chain tensioner.
Fits Left or Right Side
Fits:
Porsche 911 1984-89 3.2L
Porsche 930 Turbo 1984-89
Porsche 964 Turbo 3.3L
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010505803
The product you are viewing cross references to these numbers
Fits Left or Right Side
Fits:
Porsche 911 1984-89 3.2L
Porsche 930 Turbo 1984-89
Porsche 964 Turbo 3.3L
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010505803
93010505803
The product you are viewing cross references to these numbers
Price: €544.30
Delayed delivery