Four Seasons 53020 Automatic Transmission Oil Cooler Line Connector

Automatic Transmission Oil Cooler Connector

Four Seasons 53020 is an oil cooler coupling for automatic transmission line service. It is built as a universal fitting kit with a 45° flare shape and universal ends, making it a practical connector for transmission oil cooler line repairs where the original connector is damaged or no longer seals properly.

Compatible with most 5/16" automatic transmission oil cooler lines using a 1/2"-20 thread and quick connect coupler, this connector is used across a wide range of Chevrolet, Honda, Toyota, Nissan, Subaru, Mazda, Volvo, and other applications. Four Seasons 53020 is performance rated for service use and is sized for common transmission cooler line connections.

Key Features

• Brand: Four Seasons Oil Cooler Coupling
• Part number: 53020
• Automatic transmission oil cooler line connector
• Universal end 1 and end 2 design
• 45° flare shape for transmission line service
• Outside diameter: 0.625 in
• Performance rated for service applications
• Fitting kit style for transmission cooling repairs

Product Details

The Four Seasons Oil Cooler Coupling line is focused on transmission cooling connections that need a precise fit and dependable sealing surface. This connector is a direct service part for many vehicles that use 5/16" cooler lines with a 1/2"-20 thread and quick connect coupler arrangement. It is commonly searched as an automatic transmission oil cooler line connector, transmission cooler line fitting, or oil cooler coupling for vehicles such as the Chevrolet Silverado 1500, Honda Civic, and Toyota RAV4.

This part cross-references Hayden 250 and Standard Ignition 6920 for the same application.

What It Helps Fix

• Leaking or damaged automatic transmission oil cooler line connections
• Broken quick-connect style transmission cooler fittings
• Loose or worn transmission line sealing points
• Service issues after cooler line replacement or repair
• Fitment problems on common 5/16" transmission oil cooler line setups

Installation Notes and Tips

Verify the line size, thread specification, and connector style before installation. This part is intended for vehicles and systems that match the listed 5/16" automatic transmission oil cooler line with 1/2"-20 thread and quick connect coupler configuration. Confirm the 45° flare orientation and overall dimensions during service, especially when replacing a damaged connector on Chevrolet, Honda, Toyota, Nissan, or Subaru applications.

Quality Assurance

Four Seasons supplies this oil cooler coupling as a performance-rated transmission fitting for service repair use. Part number 53020 is built for applications that require a universal transmission cooler line connector with consistent fitment across a broad vehicle range.