Tensioner blade. Porsche 986 Boxster 1997-02 / 996 3.4L 1998-02  ❭  99610517552

Timing chain tensioner blade
OE Match replacement chain guide used within the engine timing system. It provides the wear surface the timing chain runs against while the hydraulic tensioner maintains correct chain tension. It supports and guides the timing chain, helping the tensioner maintain stable chain tension and reducing chain slap. This helps protect timing accuracy and contributes to quieter, smoother engine operation.
Sold each, 2 required per vehicle

Fits:
Porsche 986 Boxster 2.5L / 2.7L / 3.2L  1997 - 2002
Porsche 996 3.4L 1998 - 2002

Diagram ref no 30.

This OE Match tensioner blade is manufactured to OE-equivalent dimensions and guide profile to ensure correct chain tracking and compatibility with the original timing components. As the chain runs over the guide, the blade’s engineered surface minimises friction and noise while resisting wear from constant high-speed chain contact. It’s a key service item for M96 timing systems - ideal for rebuilds or preventative maintenance where aged guide material may become brittle or worn.

Fitted inside the timing case, the blade acts as a controlled contact surface for the chain while the tensioner applies pressure to keep the chain correctly tensioned. Maintaining proper guide condition helps prevent excessive wear debris and reduces the risk of poor chain control over time.

Tensioner blades are wear components. As they age, the guide surface can wear and shed material, which can affect chain control and create debris in the oil system. Renewing worn guides helps maintain stable timing chain behaviour and supports long-term timing system reliability.

When to replace:
•  During engine rebuild / timing service
•  Evidence of guide wear or debris in oil (plastic particles)
•  Timing system noise that indicates chain slap/rattle
•  High-mileage preventative maintenance



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