T4 Transporter Power Steering Belt - 10 X 858mm (AAB,AAF,ACU Engines)

This replacement V-belt is designed for the power steering pump on early Volkswagen T4 Transporters, covering vehicles from the start of production through to January 1995. Manufactured to the correct length and width, it restores proper belt drive, quiet operation, and consistent steering assistance.

What this part does

The power steering V-belt transfers drive from the engine to the power steering pump. This allows hydraulic pressure to be generated, reducing steering effort at low speeds and during manoeuvring. A worn, stretched, or cracked belt can slip, squeal, or fail completely—resulting in heavy steering and potential damage to the pump.

How it works

Wrapped around the crankshaft pulley and power steering pump pulley, the belt relies on correct tension and friction to transmit engine rotation. The 10mm width and 858mm length ensure the belt sits correctly in the pulley grooves, maintaining grip and preventing premature wear.

Key specifications

• Belt type: V-belt (power steering)

• Length: 858mm

• Width: 10mm

• Quality: Direct replacement

• Quantity: Sold individually

Engine compatibility

• AAB – 2.4 Diesel

  • From 1990 to January 1995

• AAF – 2.5 Petrol

  • From 1990 to September 1991

• ACU – 2.5 Petrol

  • From 1990 to September 1991

Vehicle applications

• VW T4 Transporter: 1990–1995

Fitting notes

• Check belt tension after installation and recheck after initial running

• Inspect pulleys for wear or misalignment

• Recommended to replace belts showing cracks, glazing, or excessive stretch

This power steering V-belt is an essential service item for early VW T4 Transporters, helping to maintain smooth steering operation and reliable day-to-day driving.