Dorman 800-721 Automatic Transmission Oil Cooler Line Connector

Reliable Automatic Transmission Oil Cooler Line Connector

The Dorman 800-721 automatic transmission oil cooler line connector is engineered to provide a secure and efficient connection for transmission cooling systems. Designed specifically for select Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac models, this metal connector ensures durability and proper fitment.

• Constructed from durable metal for long-lasting performance
• Straight fitting angle for straightforward installation
• Quick disconnect fitting on one end for easy maintenance
• Male thread fitting on the opposite end with M18x1.50 size
• Compatible with 0.5 inch fitting size on the quick disconnect side
• Includes one transmission line connector per package

Product Details and Specifications

The Dorman 800-721 transmission line connector features a straight fitting angle that simplifies alignment within the transmission oil cooler system. One end is equipped with a quick disconnect fitting sized at 0.5 inches, allowing for fast and tool-free removal during servicing. The other end has a male threaded fitting sized M18x1.50, providing a secure and leak-resistant connection. This metal connector is designed to withstand the pressures and temperatures typical of automatic transmission cooling systems, making it suitable for vehicles such as the Buick LeSabre, Cadillac DeVille, Chevrolet Impala, GMC Envoy, Oldsmobile Aurora, and Pontiac Grand Prix.

Compatible Vehicles and Applications

This transmission oil cooler line connector is compatible with a range of GM vehicles, including:

• Buick Aurora, Century, LeSabre, Park Avenue
• Cadillac DeVille, Seville
• Chevrolet Impala, Monte Carlo
• GMC Envoy, Envoy XL, Trailblazer, Trailblazer EXT, Montana
• Oldsmobile Aurora, Bravada
• Pontiac Bonneville, Grand Prix, Intrigue, Silhouette, Regal

Common Issues Addressed by This Connector

• Leaking or damaged transmission oil cooler line connections
• Corroded or worn fittings causing transmission fluid loss
• Difficulty disconnecting transmission lines during maintenance
• Improper fitment leading to transmission overheating
• Replacement of faulty or broken transmission line connectors

Installation Notes and Tips

When installing the Dorman 800-721 connector, ensure the quick disconnect fitting is fully engaged to prevent leaks. Use appropriate tools to tighten the male threaded end to the manufacturer’s torque specifications. Inspect the transmission cooler lines for any signs of wear or damage before installation. No thread sealer is required for this connector, but verify the connection is secure and free of leaks after installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance for your vehicle’s transmission cooling system. The 800-721 transmission line connector is backed by Dorman’s limited warranty, ensuring coverage against defects in material and workmanship under normal use.