Timing covers and gaskets
Contents: Timing chain set (timing chain both shoes and screws), valve cover sealing set (see picture)

Fits:
Porsche 928 S 5.0 (85 - 94) two maintenance kits required
Porsche 928 S4 (86 - 91) two maintenance kits required
Porsche 928 GT (89 - 91) two maintenance kits required
Porsche 928 GTS (91 - 95) two maintenance kits required
Porsche 944 S (86-88)
Porsche 944 S2 (89-91)
Description:
The four-valve technology is one of the sensitive parts of these otherwise robust engines: A regular replacement of the chain and its sliding elements is essential to avoid major damage. Combined with the sealing kit for the valve cover, you will receive all the parts you need to carry out the repair professionally.
Note:
For many vehicles over the years for cost reasons, only the upper shoe and the chain was changed. But even the lower shoe enters and becomes porous. Therefore, better anticipate the risk and take a look under the valve cover.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1232
The product you are viewing cross references to these numbers
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Timing Covers & Gaskets – Protect Your Porsche’s Engine Timing System
The timing cover and its gasket play a crucial role in your Porsche’s engine reliability. These components seal the timing system — protecting the timing chain, gears, and belt from oil leaks, debris, and contaminants. A secure timing cover ensures proper lubrication, maintains internal oil pressure, and prevents costly engine damage caused by fluid loss or contamination.
At Design911, we supply a wide range of timing covers and gaskets suitable for Porsche models old and new. Manufactured using high-grade aluminium, composite materials, and heat-resistant rubber compounds, our products are designed to withstand vibration, temperature extremes, and oil exposure while providing a perfect, leak-free fit.
Whether you’re maintaining a classic air-cooled 911 or rebuilding a high-performance GT engine, our timing covers and gasket sets deliver exceptional durability, sealing performance, and reliability.
What Do Timing Covers & Gaskets Do?
The timing cover shields the engine’s timing components and works in tandem with its gasket to maintain a clean, sealed environment.
Core Functions:
- Protect
the timing chain and gears from dirt, debris, and oil contamination.
- Prevent
oil leaks by sealing the timing section from external elements.
- Maintain
proper oil pressure in the engine.
- Assist
in heat dissipation around the timing assembly.
- Ensure long-term reliability of moving components like the camshaft and crankshaft.
A properly sealed timing cover is essential for consistent performance and preventing internal wear caused by oil leaks or debris infiltration.
Why Do Timing Covers & Gaskets Fail?
Due to constant exposure to oil, heat, and vibration, timing covers and gaskets can degrade or crack over time — leading to oil leaks and reduced performance.
Common Causes of Failure Include:
- Gasket
hardening or shrinkage from prolonged heat exposure.
- Cracked
or warped covers from over-tightening or impact.
- Oil
leaks caused by poor sealing or material fatigue.
- Contaminant
build-up inside the timing housing.
- Improper gasket installation or uneven torque during servicing.
Symptoms of failure include visible oil leaks at the front of the engine, oil dripping under the timing chain cover, or low oil levels. Ignoring these issues can lead to costly timing component wear or engine failure.
Why Replace Components?
Replacing worn or leaking timing covers and gaskets ensures your Porsche’s timing system remains protected and properly lubricated. Our high-performance replacement parts are designed for exact fitment, durability, and long-term sealing efficiency.
Key Benefits:
- Prevents oil leaks and pressure loss.
- Protects critical timing components.
- Enhances reliability under high-performance driving.
- Manufactured from durable, heat-resistant materials.
- Direct-fit
compatibility with Porsche 911, Cayman, Boxster, and more.
- Ideal for rebuilds, restorations, or preventive maintenance.
A fresh timing cover and gasket set is vital for maintaining your Porsche’s precision engineering and preventing oil contamination or mechanical failure.
Highlights:
- Precision-engineered timing covers and gaskets for Porsche engines.
- Protects timing chain, gears, and seals against leaks and debris.
- Built from heat-resistant aluminium and reinforced rubber.
- Perfect fit for Porsche performance and classic models.
- Durable, leak-free sealing for long-term reliability.
- Essential for rebuilds, restorations, or service maintenance.