OE 03H121117A Thermostat Assembly for Audi Q7 Cayenne Touareg 3.6 Engine Thermostat with Direct Installation

This thermostat assembly with OE numbers 03H121117A and 95810606000 is a high-quality aftermarket replacement engineered for Audi Q7, Porsche Cayenne and Volkswagen Touareg with the 3.6L engine. It is manufactured to OEM specifications, ensuring accurate dimensions and perfect fit for trouble-free direct installation.

As the core control component of the engine cooling system, this thermostat regulates coolant circulation. It remains closed when the engine is cold to help it quickly reach optimal operating temperature, then opens gradually to stabilize working temperature during driving. A failed thermostat may lead to slow warm-up, continuous overheating, high fuel consumption and accelerated engine wear, which can cause serious engine damage if left unfixed.

Constructed with premium housing, sensitive wax core and durable sealing gaskets, this assembly features excellent heat resistance and pressure resistance. It can withstand long cycles of high temperature and coolant impact in the engine compartment. Every unit undergoes strict opening-temperature and leakage testing before packing to guarantee stable and consistent performance.

No extra modification is needed during installation, saving workshop time and labor cost. It is a trusted and cost-effective cooling spare part for auto repair shops, distributors and aftermarket retailers, ideal for routine maintenance and fault repair of these 3.6L VAG and Porsche models.