Dorman 66284 Automatic Transmission Oil Cooler O-Ring

Reliable Automatic Transmission Oil Cooler O-Ring for Ford, Lincoln, and Mercury

The Dorman 66284 Automatic Transmission Oil Cooler O-Ring is designed to provide a precise seal for transmission oil coolers in select Ford, Lincoln, and Mercury vehicles. Manufactured from durable rubber and plastic materials, this black round O-ring ensures a secure fit and helps maintain optimal transmission performance.

• Constructed from high-quality rubber and plastic for durability and flexibility
• Black color for easy identification and compatibility
• Specific fit for Ford, Lincoln, and Mercury models including F-150, Explorer, Mustang, and more
• Inside diameter of 0.47 inches and thickness of 0.17 inches for accurate sealing
• Package includes 2 O-rings for dual sealing applications

Detailed Product Description

The Dorman 66284 O-ring is engineered to meet the exact specifications required for automatic transmission oil coolers in various Ford, Lincoln, and Mercury vehicles. Its round rim shape and precise dimensions—inside diameter of 0.47 inches and outside diameter ranging from 0.76 to 0.83 inches—ensure a tight seal that prevents fluid leaks and maintains transmission efficiency. The combination of rubber and plastic materials provides resistance to heat, pressure, and transmission fluids, contributing to long-lasting performance. This part is specifically designed for models such as the Ford F-150, Explorer, Mustang, Lincoln MKZ, and Mercury Sable, among others.

Common Applications and Issues Addressed

• Prevents transmission fluid leaks from the oil cooler connection
• Maintains proper transmission fluid pressure and cooling efficiency
• Replaces worn or damaged O-rings that cause overheating or shifting problems
• Helps avoid costly transmission repairs due to fluid loss
• Ensures reliable sealing in heavy-duty and daily driving conditions

Installation Notes and Tips

When installing the Dorman 66284 O-ring, ensure the transmission oil cooler and mating surfaces are clean and free of debris. Lubricate the O-ring lightly with transmission fluid to ease installation and prevent damage. Verify the correct orientation and seating of the O-ring to avoid leaks. This part is a specific fit for select Ford, Lincoln, and Mercury models, so confirm compatibility with your vehicle before installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 66284 Automatic Transmission Oil Cooler O-Ring undergoes rigorous quality control to ensure proper fit and function. While specific warranty details are not provided, Dorman typically offers limited warranties on their replacement parts to support customer confidence.