Description
Fits: 2006-2016 GM Duramax; see application.
MAHLE Victor Reinz (MAHLE Original gasket line) C31889. OE-quality sealing component/set for diesel engine service.
Is it time to replace a worn thermostat housing gasket to stop coolant leaks? The MAHLE Thermostat Housing Gasket is a direct-fit OE replacement that seals the thermostat housing and prevents coolant from escaping where the housing meets the engine. This small but critical gasket helps maintain proper coolant circulation and system pressure, ensuring the engine reaches and maintains the correct operating temperature. Replacing a damaged or brittle gasket during thermostat service helps prevent coolant leaks that can lead to overheating or reduced cooling system efficiency. Manufactured to meet or exceed original equipment specifications, the MAHLE C31889 uses durable silicone sealing material engineered to withstand constant exposure to engine heat, coolant chemicals, and pressure cycles. Its precision-cut design ensures a consistent seal around the thermostat housing while maintaining f
Notes: Follow MAHLE torque/installation specs. Replace one-time-use fasteners as required. Preserve factory emissions equipment; this listing is not an EGR delete or block-off kit.