MAHLE Engine Coolant Outlet Gasket 01-16 GM 6.6L Duramax LLY/LBZ/LMM/LML
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- Ships from MAHLE
Are you replacing a leaking thermostat housing gasket? The MAHLE Thermostat Housing Gasket is a direct-fit OE replacement that seals the thermostat housing to the engine’s coolant outlet. This gasket prevents coolant leaks at the housing connection point, helping maintain proper cooling system pressure and ensuring stable engine operating temperatures. Replacing a worn or brittle gasket during thermostat or cooling system service helps prevent coolant seepage that can lead to overheating, coolant loss, or reduced engine reliability.
Manufactured to meet or exceed original equipment specifications, the MAHLE C31900 features OE-style construction engineered for precise fitment and dependable sealing performance. The gasket is designed to withstand continuous exposure to coolant, engine heat, and pressure cycles while maintaining a consistent seal between the thermostat housing and cylinder head. Built with durable materials and strict manufacturing standards, MAHLE gaskets provide long-lasting reliability and install easily as a direct replacement during thermostat replacement or cooling system service.
Are you replacing a leaking thermostat housing gasket? The MAHLE Thermostat Housing Gasket is a direct-fit OE replacement that seals the thermostat housing to the engine’s coolant outlet. This gasket prevents coolant leaks at the housing connection point, helping maintain proper cooling system pressure and ensuring stable engine operating temperatures. Replacing a worn or brittle gasket during thermostat or cooling system service helps prevent coolant seepage that can lead to overheating, coolant loss, or reduced engine reliability.
Manufactured to meet or exceed original equipment specifications, the MAHLE C31900 features OE-style construction engineered for precise fitment and dependable sealing performance. The gasket is designed to withstand continuous exposure to coolant, engine heat, and pressure cycles while maintaining a consistent seal between the thermostat housing and cylinder head. Built with durable materials and strict manufacturing standards, MAHLE gaskets provide long-lasting reliability and install easily as a direct replacement during thermostat replacement or cooling system service.
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.