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MAHLE Engine Oil Cooler Gasket 17-20 GM 6.6L Duramax L5P
MAHLE

MAHLE Engine Oil Cooler Gasket 17-20 GM 6.6L Duramax L5P

MPN: MAH-B33757
Daily DriverTow PigStreet Performance
$7.97
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Are you replacing a worn oil cooler gasket? The MAHLE Oil Cooler Gasket Set is a direct-fit OE replacement designed to seal the engine oil cooler assembly and prevent oil from leaking between the cooler and engine components. A failing oil cooler gasket can lead to oil loss, contamination, and reduced engine reliability. Replacing the gasket set during maintenance or oil cooler service helps restore proper sealing, maintain oil pressure, and ensure the lubrication system continues operating efficiently under demanding driving conditions.

Manufactured to meet or exceed original equipment specifications, the MAHLE gasket set is produced using durable sealing materials engineered to withstand engine heat, pressure, and continuous exposure to engine oil. The precision-formed gaskets are designed to maintain a consistent seal between the oil cooler and mounting surfaces while resisting shrinkage, cracking, and thermal fatigue. Built to OE standards for fit and reliability, this gasket set installs as a direct replacement.

Warranty
Warranty based on supplier terms

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 warranty

Product 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.