Type 25 Diesel Fuel Tank Kit (Also Petrol Models With Carburettor) - 1979-83

Replacement fuel tank for use on all Pre 1983 Type 25 Buses with Diesel engines or Aircooled Petrol engines.

For early models with a metal fuel filler neck which is 68mm diameter.

60 Litre Capacity

Fuel Tank sealing grommet. Fits all T25 models after 24A0090384 chassis number.

There are three of these that seal the breather pipes into the top of the fuel expansion tank.

Replacement rubber seal that seals the fuel filler neck to the fuel tank on all early Type 25 Buses with Aircooled engines or early Diesel models.

The fuel filler neck on these models is metal.

57.5mm ID

70mm OD

This 58mm rubber O-ring is a critical sealing component used between the fuel tank and sender unit, ensuring a tight, leak-proof seal in a wide range of classic Volkswagen models. Designed to sit in the recess between the tank opening and sender flange, it prevents fuel vapour and liquid leaks, maintaining both safety and correct fuel system pressure.

Manufactured from high-quality fuel-resistant rubber, this seal is built to withstand constant exposure to petrol, temperature changes, and long-term compression. Over time, original seals harden, crack, or shrink—leading to fuel smells, leaks, or inaccurate sender readings. Replacing this O-ring restores a proper seal and ensures the sender unit operates correctly.

In addition to fuel system use, this versatile 58mm O-ring is also commonly used on G60 supercharger intake pipes, where it provides an airtight seal between intake components. This ensures stable airflow, helping maintain correct boost pressure and engine performance.

Installation is straightforward during fuel sender replacement or tank maintenance. Simply seat the O-ring correctly in the tank groove before refitting the sender unit. It is recommended to check the sender locking ring and tank surface condition at the same time for best results.

Vehicle Fitment

Aircooled Applications:

• VW Beetle (1302 & 1303): 1971–1979
• VW Beetle Cabriolet: 1971–1979
• VW T2 Bay Window: 1973–1979

Watercooled & Later VW Applications:

• VW T25 (T3): 1979–1992 – 1.6–2.1 Petrol
• VW Golf Mk1: 1975–1984 – 1.1–1.6 Petrol
• VW Golf Mk1 Cabriolet: 1979–1992
• VW Golf Mk2: 1984–1992
• VW Caddy Mk1: 1982–1992 – Petrol & Diesel
• VW Scirocco Mk1 & Mk2: 1974–1992
• VW Polo Mk1 & Mk2 (86/86C): 1975–1994
• VW Derby (86 & 86C): 1977–1984
• VW Jetta Mk1: 1978–1984

Other Applications:

• VW Corrado (G60 models): 1989–1992 (intake pipe seal use)
• Porsche 924: 1976–1979

Key Features

• 58mm diameter fuel tank sender O-ring
• Prevents fuel leaks and vapour escape
• Ensures accurate fuel sender operation
• Fuel-resistant, durable rubber construction
• Also suitable for G60 supercharger intake sealing
• Simple installation during maintenance or repair