MAHLE Thermostat Housing Gasket 06-16 GM 6.6L Duramax LLY/LBZ/LMM/LML
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- Ships from MAHLE
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 flexibility during thermal expansion and contraction. Built for dependable OE-level fitment and durability.
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 flexibility during thermal expansion and contraction. Built for dependable OE-level fitment and durability.
Diesel Power Products directs warranty claims to the respective manufacturer; coverage and duration depend on that manufacturer and product. Its one-year manufacturer-defect warranty applies only to products manufactured by Power Products Unlimited Inc., not all products it sells. Manufacturer inspection is required; DPP does not pay inspection/return shipping or labor.
Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Diesel Power Products warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
- Return eligibility
- Diesel Power Products states a 30-day window from receipt for eligible new, uninstalled, unopened and complete items in original packaging, with prior approval/RMA. Custom tuners and specified opened tools are excluded. Customer pays return shipping; original outbound shipping, including initially free shipping, is deducted. No standard restocking percentage is stated for ordinary approved returns. Based on what Diesel Power Products offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- Diesel Power Products
- Warranty duration
- Product-specific duration not stated; see supplier terms
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–7 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- Diesel Power Products
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.