Thermostat 78º (ERR3291W)

This is a 78 °C thermostat for the 300 TDI engine from the Allmakes 4x4 brand.

It regulates the flow of coolant to the radiator so the engine reaches and holds its operating temperature, and is usually replaced when the engine overheats, warms up too slowly or the coolant is changed.

Compatible with Land Rover Defender and Discovery 1 300 TDI and Range Rover Classic 300 TDI.

Reference: ERR3291W