Type 25 Water Hose - Expansion Tank To Plastic Pipe T-Piece - Pickup Models Only

This replacement rubber coolant hose is designed specifically for Type 25 / T3 pickup and dropside models (245 & 248). It connects the top of the expansion tank to the plastic T-piece on the main circulation pipe, forming a vital part of the cooling system’s bleed and return circuit on both 1.9 and 2.1 petrol Waterboxer engines.

Pickup models use a different engine bay and coolant layout compared to vans, so this hose is model-specific. Using the correct hose ensures proper routing, secure sealing, and reliable bleeding—critical for maintaining stable coolant levels and preventing air locks.

Manufactured from high-quality NBR fabric-reinforced rubber, this hose is moulded to the exact original shape and specification for a perfect fit and long service life, resisting heat, pressure, and coolant chemicals.

What this hose does and how it works

As coolant expands and contracts with temperature, the expansion tank manages pressure and volume. This hose allows coolant and trapped air to flow from the tank into the main circulation via the plastic T-piece, ensuring effective bleeding and consistent coolant circulation. A sound hose here is essential for stable operating temperatures and leak-free performance.

Fitment

• Vehicle: Type 25 / T3 245 & 248 (pickup / dropside models)

• Years: 1982–1992

• Application: Expansion tank (top) to plastic circulation T-piece

Engine code compatibility

• DF: 1.9 (08/82 – 07/92)

• DG: 1.9 (08/82 – 07/92)

• EY: 1.9 (10/84 – 07/89)

• SP: 1.9 (08/86 – 07/89)

• MV: 2.1 (08/85 – 07/92)

• DJ: 2.1 (08/84 – 07/92)

• SR: 2.1 (08/86 – 07/92)

• SS: 2.1 (08/89 – 07/92)

Fitting requirements (sold separately)

• 2 × 23mm tension clamps: N0164021

Fitting notes

• Inspect the plastic T-piece for cracks or brittleness and replace if needed

• Ensure the hose seats fully before tightening clamps

• Refill with the correct coolant and bleed the system thoroughly after installation

A correctly formed, model-specific hose that helps keep your Type 25 pickup cooling system properly bled, pressurised, and reliable.