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- 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Related, superseded, cross reference or alternative numbers for comparison.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 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
- Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
Complete replacement timing chain set. It includes the main drive chain, oil-pump drive chain, sprockets/gears, chain guides, and tensioner components needed to synchronise the crankshaft and camshafts - ensuring precise valve timing and pump operations.
Fits:
Porsche 970 3.0L Panamera
Porsche 958 3.6L Cayenne
Porsche Macan 3.0L / 3.6 Turbo
Contains
1x 94610725275
1x 94810516910
1x 94610725877
1x 94610223175
1x 94610518076
1x 94810502312
2x 94810516612
1x 94610506800
1x 94810506510
1x 94610725300
• Complete kit: Includes all critical parts (chain, sprockets, guides, tensioner) for a correct and reliable rebuild.
• Use Cases: Timing chain replacement, engine rebuild, preventive maintenance, repair after chain noise or wear, restoration of engine timing integrity.
Manufactured to match the original specifications in terms of chain length, strength, link design, and guide/tensioner geometry, this kit provides a direct-fit replacement for worn original components. Installation restores the engine’s timing integrity - crucial for proper combustion, timing accuracy, and long-term reliability.
Over time and under high-mileage, original timing chains can stretch, wear or develop slack, while guides or tensioners may wear down - leading to imprecise valve timing. This can result in poor combustion, loss of power, rough running, or - in worst cases - valve-to-piston interference and severe engine damage. Using a fresh timing chain kit restores original timing accuracy, ensures oil pump and valve timing integrity, and maintains long-term engine reliability.
When to replace:
• If the engine shows timing chain noise (rattling, knocking), especially on cold start or under load.
• During high-mileage maintenance or engine overhaul to prevent future chain stretch and failure.
• If you notice timing-related faults: misfires, poor idle, check-engine light, or performance loss.
• When doing cylinder head or oil-pump work - fitting a new chain kit as part of a comprehensive rebuild.
• As a preventive upgrade for older engines to safeguard against catastrophic timing failure.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94810516910
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
- Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
- Porsche 971.2 Panamera 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S E-Hybrid Sport Turismo 2.9L V6 2021-23
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
- Porsche 95B.2 Macan GTS Petrol 2.9L V6 (380Bhp) 2019-21
- Porsche 95B.2 Macan Turbo 2.9L V6 (440Bhp) 2019-21
- Porsche 95B.3 Macan S Petrol 2.9L V6 (380Bhp) 2022>>
- Porsche 95B.3 Macan GTS Petrol 2.9L V6 (440Bhp) 2022>>
Porsche Cayenne 9YA Timing Chain Kit with Tensioners & Guide Rails – 2.9L & 3.0L Engines
The timing chain kit with tensioners and guide rails is a
critical engine service solution designed to maintain precise valve timing and
long-term engine reliability. This comprehensive kit includes the essential
components required to control chain movement, maintain correct tension, and
prevent internal engine damage.
Fits:
- Porsche 9YA Cayenne V6 3.0L Petrol 340Hp 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol 340Hp 2019-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 340Hp 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L 340Hp 2020-23
- Porsche 9YA Cayenne S V6 2.9L Petrol 440Hp 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol 440Hp 2019-23
- Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4S 2.9L Twin-Turbo V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD 2017-20
- Porsche 971.1 Panamera 4 E-Hybrid V6 2.9L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4 E-Hybrid 2.9L Twin-Turbo V6 Sport Turismo 2017-20
- Porsche 971.2 Panamera 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 E-Hybrid 2.9L V6 2021-23
- Porsche 971.2 Panamera 4 E-Hybrid Sport Turismo 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S E-Hybrid 2.9L V6 2021-23
- Porsche 971.2 Panamera 4S E-Hybrid Sport Turismo 2.9L V6 2021-23
- Porsche 95B.2 Macan S Petrol 3.0L V6 354Bhp 2019-21
- Porsche 95B.2 Macan GTS Petrol 2.9L V6 380Bhp 2019-21
- Porsche 95B.2 Macan Turbo 2.9L V6 440Bhp 2019-21
- Porsche 95B.3 Macan S Petrol 2.9L V6 380Bhp 2022>>
- Porsche 95B.3 Macan GTS Petrol 2.9L V6 440Bhp 2022>>
Fitted to modern Porsche V6 petrol engines, the timing chain system synchronises the crankshaft and camshafts, ensuring accurate valve operation across all engine speeds. Over time, wear within the chain, tensioners, or guide rails can lead to timing inaccuracies, noise, and potentially catastrophic engine failure. Replacing the complete timing chain kit restores correct engine timing and protects high-value internal components.
What Does a Porsche Cayenne 9YA Timing Chain Kit Do?
The timing chain kit for Porsche Cayenne 9YA 2.9L and 3.0L
engines ensures the precise mechanical synchronisation of the engine’s rotating
components. Its functions include:
- Maintaining correct camshaft-to-crankshaft timing
- Controlling chain tension under varying engine loads
- Reducing vibration and chain slap
- Preventing premature wear of timing components
The inclusion of new tensioners and guide rails ensures consistent chain control, especially during cold starts and high-load driving conditions.
Why Do Timing Chains, Tensioners & Guide Rails Fail?
Timing chain system components on Porsche 9YA Cayenne models
can fail due to:
- Normal wear over high mileage
- Degraded or brittle plastic guide rails
- Hydraulic tensioner fatigue or oil pressure issues
- Extended oil change intervals or oil contamination
Early warning signs often include rattling noises on cold start, engine fault codes, rough running, or timing deviation faults. Ignoring these symptoms can result in chain jump, valve-to-piston contact, and severe engine damage.
When Should You Replace a Porsche Cayenne 9YA Timing Chain Kit?
You should replace the timing chain kit with tensioners and
guide rails when:
- Carrying out major engine servicing or rebuilds
- Experiencing timing-related fault codes or start-up rattles
- Replacing failed or noisy chain tensioners
- Preventative maintenance on higher-mileage vehicles
- Restoring engine performance and reliability
Replacing the full kit — rather than individual components — ensures balanced wear, correct tension, and long-term durability.
At Design911, we supply high-quality Porsche engine timing components engineered to meet the demands of modern performance engines.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAC109450
The product you are viewing cross references to these numbers