G3 Thermostat Housing - 1.4-1.6

This thermostat housing is a direct replacement for a wide range of VW petrol engines, restoring correct coolant flow and sealing at one of the most common leak points in the cooling system. The housing mounts to the engine and secures the thermostat in position, directing coolant between the engine and radiator as temperatures rise and fall.

Over time, original plastic housings can become brittle, warp, or crack due to repeated heat cycles. This can lead to coolant leaks, unstable engine temperatures, poor heater output, or overheating. Replacing the housing ensures the thermostat seats correctly and that coolant is routed as intended, helping the engine warm up quickly from cold and maintain a stable operating temperature once hot.

This housing is ideal when carrying out thermostat replacement or when addressing coolant loss around the thermostat area. For best results, always inspect the thermostat, gasket/seal, and coolant temperature sensors during installation.

Fitting notes & recommended related parts

• Thermostat and seal may be required depending on application

• Inspect coolant hoses and hose clips for age-related damage

• Refill using correct VW-spec coolant and bleed system fully

• Consider replacing coolant temperature sender if readings are erratic

Vehicle Fitment Summary

VW Caddy II (1995–2004)

• 1.4 Petrol – 60 PS / 75 PS

• 1.6 Petrol – 75 PS
  Pickup, MPV & Box Body variants

VW Golf III (1991–1999)

• 1.4 Petrol – 55 PS / 60 PS

• 1.6 Petrol – 75 PS
  Hatchback & Estate

VW Lupo (1998–2005)

• 1.0 Petrol – 50 PS

• 1.4 Petrol – 60 PS / 75 PS

VW Polo 6N (1994–2001)

• 1.0 Petrol – 50 PS

• 1.4 Petrol – 55 PS / 60 PS / 75 PS / 100 PS

• 1.6 Petrol – 75 PS
  Hatchback & Estate

VW Polo Classic 6V2 (1995–2001)

• 1.4 Petrol – 60 PS / 75 PS

• 1.6 Petrol – 75 PS

VW Vento (1991–1998)

• 1.4 Petrol – 55 PS / 60 PS

• 1.6 Petrol – 75 PS

Please confirm engine code and year before ordering.