Genuine OEM Volkswagen Thermostat Housing, part number 04L121026L. This essential component encloses the engine's thermostat and is crucial for regulating coolant flow throughout the engine cooling system. It is typically located on the engine block or cylinder head, serving as a central hub for coolant hoses. Constructed from durable, heat-resistant plastic, this housing weighs approximately 0.55 kg and measures 355mm in length. Using a genuine OEM thermostat housing ensures precise fitment, leak-free operation, and the correct material properties to withstand high temperatures and pressures within the cooling system.

Catalogue entry: HOUSING.

Fitted with: N91203201 BOLT.