Dorman 66284 Automatic Transmission Oil Cooler O-Ring

Automatic Transmission Oil Cooler O-Ring for Ford and Lincoln

Dorman 66284 is an automatic transmission oil cooler O-ring built to match the original fit and function on specified Ford and Lincoln vehicles. It is engineered for durable sealing performance in transmission cooler connections where a precise seal is critical.

• Direct-fit automatic transmission oil cooler O-ring
• Designed for specific Ford and Lincoln applications
• Black rubber sealing construction
• Round profile with precise inside and outside dimensions
• OE-style replacement for service and repair work

Fitment and Application Details

Compatible with a wide range of Ford and Lincoln models, including Fits 2013-2021 Ford Escape, N/A; Fits 2007-2020 Ford Edge, N/A; Fits 2011-2020 Ford Explorer, N/A; Fits 2015-2020 Ford F-150, N/A; Fits 2013-2020 Ford Fusion, N/A; Fits 2015-2020 Ford Mustang, N/A; and Fits 2013-2020 Lincoln MKZ, N/A. Dorman 66284 also applies to other listed vehicles such as Ford EcoSport, Transit Connect, Flex, Taurus, Transit vans, and Lincoln MKC, MKT, MKX, MKS, and Nautilus.

This part cross-references Ford service numbers 5L7Z7D285A and 5L7Z7J324A for the same application.

What This Seal Helps Address

• Transmission cooler line seepage at the O-ring seal
• Fluid loss caused by a worn or flattened seal
• Leak points created during cooler line service
• Poor sealing after transmission cooler connection repair
• Fitment issues when replacing an original cooler O-ring

Installation Notes and Tips

Inspect the cooler fitting and sealing surface before installation. Clean the mating area thoroughly, then install the O-ring with care to avoid twisting or nicking the seal. Verify the application against the vehicle’s transmission cooler connection before service, especially on Ford Escape, Ford Edge, Ford Explorer, Ford F-150, and Lincoln MKZ models.

Quality Assurance

Dorman designs this transmission oil cooler O-ring to match original fit and function and to deliver reliable performance in service. Part number 66284 is built for specific vehicle applications and follows OE-style replacement standards.