T4,G3 Transporter Water Pipe - Block To Main Junction Box - VR6 Engines (AES Engines)

This water pipe is fitted to Volkswagen VR6 engines and is found on all 2.8 VR6 (AES) engines installed in T4 Transporters. It is mounted across the front of the engine block and connects the water pump housing to the main coolant distribution junction box, forming a key part of the engine’s cooling system.

The pipe allows coolant to flow efficiently from the water pump into the distribution housing, where it is then directed through the engine and cooling circuit. Because of its position at the front of the engine, this pipe is exposed to heat cycles and vibration, and over time the seals at either end can harden or fail, leading to coolant leaks.

This is a top-quality replacement pipe, manufactured to the correct shape and dimensions to ensure a direct fit on VR6 engines. It is ideal for preventative maintenance, cooling system repairs, or engine rebuilds where original components may be corroded or leaking.

When replacing this pipe, it is strongly recommended to also renew the sealing rings at both ends to ensure a leak-free installation and long-term reliability.

Important fitting notes:

• Fits VR6 engines only

• Located across the front of the engine block

• Connects water pump housing to coolant distribution box

Recommended additional parts:

• Seals (required): Part ID N10139201 × 2

• Inspect surrounding coolant pipes, hoses, and fittings during installation and replace any worn or damaged components

Maintaining the integrity of this pipe and its seals is essential for stable coolant flow and proper temperature control on VR6 engines.

Engine Compatibility

• AES – 2.8 VR6

• AAA – 2.8 VR6

• ABV – 2.9 VR6

Applications

• VW T4 Transporter: 1996 – 2000 (VR6)

• VW Golf Mk3: 1992 – 1998 (VR6)

• VW Corrado: 1989 – 1995 (VR6)

• VW Vento: 1992 – 1998 (VR6)