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> Summary: Oil cooler gasket and O-ring designs are determined by the engine and cooler assembly. Request part-number verification and sourcing guidance from DCT.

DIESEL PARTS / SEALS, GASKETS AND REPAIR KITS

# Engine Oil Cooler Gasket & Seal Kits

Find oil-cooler gasket and O-ring kits by the cooler assembly and engine family. The right seals help protect against oil and coolant leaks.

Have the exact assembly number and location of the leak or seal? We can help identify the gasket, O-ring or repair kit that fits your inquiry.

## Where these parts are used

Oil cooler joints and seal materials vary with the cooler and engine. A correct gasket set prevents mismatched passages and connections.

## Match the Right Part to Your Equipment

Provide the engine model, oil cooler or adapter numbers and the specific leaking joint.

Identify the system being sealed, the assembly revision, and whether the required item is an individual gasket, O-ring, injector installation set or a broader service kit.

## Select the kit, not just a similar O-ring

Distinguish an oil-cooler replacement from seal service, and confirm correct component compatibility.

Identify the full assembly and which joint is being serviced. Component revisions may change seals and kit contents; opening a pump or injector can require specialized test and calibration afterward.

## Part Names and Identification

Related descriptions include oil cooler seals, engine oil cooler o rings. Match the original assembly and correct sealing components for your equipment.

## Need Help Finding This Part?

Have a part number or photo of the original component? Include it with the engine or equipment model and quantity you need. We'll help review matching options and availability.

[Ask Our Parts Team](/parts/find-a-part/)

Looking for a specific component? Explore products listed in our store, or ask us about something you don't see online.

[Visit the Diesel Parts Store](/store/)

## Related Parts and Resources

- [Browse related seals, gaskets and repair kits](/parts/seals-repair-kits/)
- [Get Help with a Part Number](/parts/find-a-part/)
- [Shop Diesel Parts](/store/)
- [Learn About This Fuel System](/parts/coolers/)