VW Engine Coolant Thermostat Seal - OE Supplier N90303403

Product Information

A thermostat gasket is a sealing gasket located between the thermostat housing and the engine block. Its primary role is to create a tight seal that prevents coolant from leaking out of the thermostat housing, ensuring that coolant circulates properly between the engine and the radiator. The gasket is usually made from rubber, silicone, or paper-like materials and is designed to withstand the heat and pressure of the engine's cooling system.

• Coolant Leaks: The most common symptom of a failing thermostat gasket is a coolant leak. If the gasket becomes worn, cracked, or damaged, coolant may start to leak from around the thermostat housing, leading to visible coolant puddles under the vehicle or around the engine.
• Engine Overheating: A faulty thermostat gasket can cause coolant loss, leading to reduced coolant levels and overheating of the engine. The engine temperature may rise above normal operating levels, and if the leak is severe enough, the vehicle may overheat, potentially causing serious engine damage.
• Erratic Temperature Readings: A leaking thermostat gasket may cause the engine’s temperature to fluctuate. In some cases, the coolant may escape too quickly for the system to regulate engine temperature efficiently, leading to sudden changes in the temperature gauge reading.

About OE Supplier

OE Supplier parts are produced by a manufacturer that meets high quality standards and produces at least one part for a vehicle manufacturer. FCP recommends OE & OEM replacement parts as one of the best options in terms of quality and price. Typically all OE manufacturers adhere to stringent quality control and are known to be exceptional quality. OE Supplier parts will often be packaged in a white box with familiar name brand markings and logos on the part itself.