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Design911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design911shop.com/images/schemaLogo.png https://www.design911shop.com/images/schemaLogo.png +443456003478 https://www.design911shop.com Facebook Instagram

Timing covers and gaskets

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DISPLAYING 1 to 2 (of 2 products)
99902519330/1
Product Information
Product Information
Spacer washer, 6.4 x 14 x 3mm
Spacer washer used in various places.
Sold each

Fits:
Porsche 964 - 1989 to 1994
Porsche 964 turbo 3.6ltr - 1994
Porsche 993 - 1994 to 1998
Porsche 996 Carrera 2 / Carrera 4 3.4ltr- 1997 to 2001
Porsche 958 Cayenne 3.6ltr / 4.8ltr - 2011 to 2018
Porsche 970 Panamera 3.0ltr / 4.8ltr - 2009 to 2016
Porsche 95B.1 Macan V6 Petrol - 2014 to 2018


The spacer washer helps provide the correct distance, support, and load distribution at the fastening point. A correctly fitted washer can help protect surrounding components, improve fastening security, and maintain the correct installed position of the related part.

Functions
•  Replaces the spacer washer
•  Provides spacing between components
•  Helps distribute fastening load
  Supports correct component positioning
•  Helps protect mounting surfaces from direct fastener contact
•  Suitable for Porsche repair, maintenance, or restoration work
•  OE Match replacement for specified Porsche applications.

Why Replace This Part?
Spacer washers can become corroded, worn, flattened, distorted, lost, or damaged during service work. Missing or incorrect washers may affect component spacing, fastening security, alignment, or mounting surface protection. Replacing with the correct washer helps ensure the assembly is fitted as intended.

When to Replace This Part
•   The original washer is missing
•   The washer is corroded, distorted, worn, or damaged
•   Related components have been removed during service
•   Correct spacing or fastening support is required
•   A vehicle diagram specifies washer 9990251933
•   The vehicle is undergoing Porsche repair or restoration work

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99902519330
99902519330

The product you are viewing cross references to these numbers
Special Order item
99902519330
Product Information
Product Information
Spacer washer, 6.4 x 14 x 3mm
Spacer washer used in various places.
Sold each

Fits:
Porsche 964 - 1989 to 1994
Porsche 964 turbo 3.6ltr - 1994
Porsche 993 - 1994 to 1998
Porsche 996 Carrera 2 / Carrera 4 3.4ltr- 1997 to 2001
Porsche 958 Cayenne 3.6ltr / 4.8ltr - 2011 to 2018
Porsche 970 Panamera 3.0ltr / 4.8ltr - 2009 to 2016

Porsche 95B.1 Macan V6 Petrol - 2014 to 2018                



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99902519330
99902519330

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
About Timing covers and gaskets

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.

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