Chain guide set. Porsche 986 Boxster 1997-02 / 996 3.4L 1998-01  ❭  99610517353KIT.OE

Timing chain guide & Tensioner guide set
This set includes four Genuine Porsche OEM timing system components used in the timing chain assembly of Porsche engines:
2 × 99610517353 – Genuine Porsche Timing Chain Guides
2 × 99610517552 – Genuine Porsche Timing Chain Tensioner Guides
These parts are factory-original Porsche components engineered to the exact specifications used on production vehicles, ensuring proper fit, material performance, and long-term reliability.

Fits:
Porsche 986 2.5L / 2.7L / 3.2L Boxster 1997 - 2001
Porsche 996 3.4L 1998 - 2001

Diagram ref no 33 & 30

These OEM components are critical wear surfaces that support the timing chain’s routing and tension control, helping maintain accurate valve timing and quiet operation throughout the engine’s service life. Sold as a complete set, this kit is ideal when performing timing belt/chain servicing, major engine overhauls, or preventive maintenance on engines susceptible to guide degradation due to age or mileage.

• Timing Chain Guides (99610517353) - Provide stable support surfaces for the timing chain, maintaining its path over the sprockets and preventing lateral movement or unwanted vibration.

• Timing Chain Tensioner Guides (99610517552) - Work with the hydraulic tensioner to maintain correct chain tension, absorbing dynamic loads and helping prevent slack, noise, or chain wear.

 Together, these guides help deliver stable, accurate timing chain function - crucial for maintaining precise cam/crank synchronization and long-term engine durability.

Timing chain guides and tensioner guides are wear components that degrade naturally over time due to friction, heat, and engine operation cycles. Deteriorated guides can contribute to timing chain noise, vibration, and inaccurate timing tension - potentially leading to premature chain and sprocket wear or timing system damage. Installing Genuine Porsche OEM guides restores the exact engineered surfaces and helps ensure timing accuracy, quiet operation, and long-term reliability.

When to replace:
•  During scheduled timing system service or timing chain inspection
•  If the engine exhibits chain rattle or timing-related noise
•  After significant mileage or high-temperature operation
•  When rebuild or overhaul procedures remove the original guides
•  As part of preventive maintenance in performance or daily drivers

Related reference numbers
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99610517353KIT.OE

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