G4 Alternator Belt Tensioning Pulley - 1.4-1.6

This auxiliary belt tensioner maintains the correct tension on the v-ribbed (serpentine) belt, ensuring reliable drive of key components such as the alternator, power steering pump, and air conditioning compressor. The spring-loaded mechanism automatically compensates for belt stretch and engine movement, keeping belt tension consistent across all driving conditions.

A worn or weak tensioner can cause belt squeal, vibration, uneven belt wear, or charging and steering issues. Replacing the tensioner restores smooth, quiet operation and protects the auxiliary belt and driven accessories from premature failure. This unit is built to original dimensions for accurate alignment on AC and power-steering equipped petrol models.

Technical details

• Belt type: V-ribbed / auxiliary belt

• Vehicle equipment: With power steering and air conditioning

• Outer diameter: 70 mm

• Width: 24 mm

Related parts to consider

• Correct-length v-ribbed auxiliary belt (AC models)

• Deflection / guide pulley (if fitted on the same belt run)

• Mounting bolts (single-use on some applications)

Vehicle Fitment Summary

Volkswagen Bora

• 1.4 Petrol 75 PS: 2000–2005 (Saloon & Estate)

• 1.6 Petrol 105 PS: 2000–2005 (Saloon & Estate)

• 1.6 Petrol 110 PS: 2002–2005 (Saloon & Estate)

Volkswagen Golf IV

• 1.4 Petrol 75 PS: 1997–2004 (Hatchback), 1999–2006 (Estate & Estate Van)

• 1.6 Petrol 105 PS: 2000–2006 (Hatchback, Estate & Estate Van)

• 1.6 Petrol 110 PS: 2002–2006 (Hatchback & Estate)

Petrol models with power steering and air conditioning only.