Dorman 800-727 Automatic Transmission Oil Cooler Line Connector

Reliable Automatic Transmission Oil Cooler Line Connector

The Dorman 800-727 automatic transmission oil cooler line connector is engineered to provide a secure and efficient connection for transmission cooling systems. Designed specifically for select Cadillac, Chevrolet, and GMC models, this aluminum fitting ensures durability and proper fluid flow.

• Constructed from corrosion-resistant aluminum for long-lasting performance
• Straight fitting angle for straightforward installation and optimal fluid flow
• Quick disconnect fitting on one end for easy maintenance and service
• Male thread fitting on the opposite end for secure attachment
• Fitting sizes: 0.375 inch (end 1) and 0.563 inch (end 2) to match OEM specifications
• Includes one transmission fitting per package

Durable Aluminum Construction and Precise Fitment

This automatic transmission oil cooler line connector is made from high-quality aluminum, providing resistance to corrosion and heat commonly encountered in transmission cooling systems. The straight fitting angle simplifies installation in tight engine compartments. Featuring a quick disconnect on one end and a male threaded fitting on the other, the 800-727 part number matches factory specifications for Cadillac Escalade, Chevrolet Silverado, and GMC Sierra models, among others. The precise 0.375 inch and 0.563 inch fitting sizes ensure a leak-free connection, maintaining proper transmission fluid circulation.

Compatible Vehicles and Applications

Compatible with a range of GM vehicles, this connector is suitable for:

• Cadillac Escalade, Escalade ESV, Escalade EXT
• Chevrolet Avalanche 1500, Silverado 1500, Silverado 2500 HD, Silverado 3500 HD
• GMC Sierra 1500, Sierra 2500 HD, Sierra 3500 HD, Yukon, Yukon XL 1500, Yukon XL 2500
• Suburban 1500 and 2500, Tahoe

Common Issues Addressed by This Connector

• Leaking or damaged transmission oil cooler line connections
• Corrosion-related failures in transmission fluid fittings
• Difficulty disconnecting or reconnecting transmission cooler lines during maintenance
• Improper fitment causing transmission fluid leaks or pressure loss
• Wear and tear from heat and vibration in transmission cooling systems

Installation Notes and Tips

• Ensure the transmission is cool before beginning installation to avoid burns
• Verify the fitting sizes and thread types match your vehicle’s OEM specifications
• Use appropriate tools to avoid damaging the quick disconnect or threaded fittings
• Inspect transmission cooler lines for wear or damage during replacement
• Check for leaks after installation by running the engine and monitoring fluid flow

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and fitment. The 800-727 transmission fitting undergoes rigorous quality control to provide consistent durability. While no thread sealer is included, the design ensures a secure connection when installed correctly. Please refer to Dorman’s warranty policy for specific coverage details.