G3,G4 Rocker Cover Gasket - Diesel Engines

This high-quality valve cover gasket is designed as a direct replacement for a wide range of Volkswagen 1.7 and 1.9 diesel engines fitted throughout the 1990s. The gasket forms a crucial seal between the cylinder head and the valve cover (also known as the rocker cover), preventing oil leakage while maintaining proper crankcase ventilation. A worn or hardened valve cover gasket can lead to oil seepage onto the cylinder head, glow plug wiring, injectors, and exhaust components, often causing burning smells, visible smoke, or messy engine contamination.

Manufactured from durable, heat-resistant rubber, this gasket is engineered to withstand the high temperatures and vibration found in diesel engines. Its precision-moulded profile ensures an accurate fit around camshaft recesses and bolt housings, providing a long-lasting oil-tight seal. Replacement is straightforward and commonly carried out as part of general maintenance, valve-clearance checks, camshaft work or rocker cover refurbishments.

When installing the gasket, we recommend thoroughly cleaning the valve cover and cylinder head mating surfaces, and inspecting the cover for distortion—a common issue on older diesel engines. If the cover is warped, a new gasket alone may not restore proper sealing. It is also good practice to check the condition of breather hoses and PCV valves while the cover is removed, ensuring correct crankcase pressure.

Confirmed Fitment Includes:

VW Caddy II – Diesel

• 1.7D (57hp) – 07/1996 (MPV & Box Body)

• 1.9D (64hp / 90hp) – 11/1995–10/1996 (MPV & Box Body)

VW Golf Mk3 – Diesel

• 1.9D / 1.9TD / 1.9TDI (64hp / 90hp / 110hp) – 1991–1996

• Models include Hatchback, Estate, Convertible, Van and Estate Van variants

VW Golf Mk4 – Diesel

• 1.9 Diesel (90hp / 110hp) – 06/1998 Convertible

VW Lupo – Diesel

• 1.7D (60hp) – 09/1998 Hatchback

VW Passat B3 & B4 – Diesel

• 1.9D / 1.9TD / 1.9TDI (90hp / 110hp) – 1993–1997

• Saloon and Estate

VW Polo (6N) – Diesel

• 1.7D (57–60hp) – 1995–1999

• 1.9D (64–65hp) – 1996–1999

• Hatchback models

VW Polo Classic (6V2) – Diesel

• 1.7D (57hp) – 1995–1997

• 1.9D / 1.9TD / 1.9TDI (64–110hp) – 1995–1998

VW Polo Variant (6V5) – Diesel

• 1.7D / 1.9D / 1.9TD / 1.9TDI (57–110hp) – 1995–1998

• Estate & Estate Van

VW Sharan I – Diesel

• 1.9D / 1.9TDI (90–110hp) – 1995–1996

• MPV & Box Body variants

VW Vento – Diesel

• 1.9D / 1.9TD / 1.9TDI (64hp / 90hp / 110hp) – 1993–1997

• Saloon

This gasket restores a clean, leak-free seal and is ideal for both routine maintenance and engine rebuild work on classic VW diesel platforms.