Hayden 699 Automatic Transmission Oil Cooler

Transmission Cooling for Heavy-Duty Use

The Hayden 699 Trans Oil Cooler is a performance-rated automatic transmission oil cooler built with an aluminum core and a Rapid-Cool with bypass design. It measures 11.000 in. long, 11.000 in. wide, and 0.750 in. thick, with a black finish and included mounting hardware for a cleaner installation.

Built for a wide range of Toyota, Ford, Chevrolet, GMC, Dodge, Ram, and other applications, this Hayden transmission oil cooler is a direct solution for drivers looking to manage transmission fluid temperature in demanding driving conditions. Part number 699 is also cross-referenced to Continental 15475 for the same application.

Key Features

• Automatic transmission oil cooler with Rapid-Cool w/ bypass design
• Aluminum core construction with black finish
• Performance rated for demanding street and work use
• 30-row core layout for efficient fluid cooling
• 3/8 in. hose barb connectors with male inlet and outlet
• Included mounting hardware and bracket
• 54 in. hose length included
• Burst pressure rating: 150 psi

Product Details

Hayden Trans Oil Cooler 699 is designed for automatic transmission fluid cooling in vehicles that see towing, hauling, stop-and-go traffic, or extended heat exposure. The plate-and-fin style cooler with bypass routing helps regulate fluid temperature while maintaining steady flow through the system. Its compact 11 x 11.75 in. overall footprint makes it suitable for many truck, SUV, and performance-car installations, including Toyota 4Runner, Toyota Tacoma, Ford F-150, and Chevrolet Silverado applications listed in the fitment data.

This Hayden 699 cooler is a practical upgrade for drivers who want added thermal control without changing the vehicle’s basic transmission setup. The aluminum construction supports efficient heat transfer, while the hose barb connection style simplifies routing in many aftermarket and service replacement installations.

Common Problems It Can Help Address

• High transmission fluid temperatures during towing or hauling
• Heat buildup in stop-and-go driving
• Transmission stress from extended highway use
• Fluid breakdown caused by elevated operating temperatures
• Cooling limitations in vehicles used for work or performance driving

Installation Notes and Tips

• Verify available space before mounting; overall dimensions are 11.000 in. x 11.75 in. x 0.750 in.
• Use the included bracket and mounting hardware to secure the cooler firmly.
• Confirm hose routing and connector size before installation; this unit uses 3/8 in. hose barb fittings.
• Inspect transmission lines and fluid condition before adding an auxiliary cooler.
• Follow the vehicle service procedure for bleeding and checking transmission fluid after installation.

Quality Assurance

Hayden part number 699 is a performance-rated transmission oil cooler built with aluminum core construction and a bypass design for controlled fluid cooling. It is engineered for broad application coverage across many Toyota, Ford, Chevrolet, GMC, Dodge, Ram, and related vehicles listed in the fitment data.

Compatible With 2003-2021 Toyota 4Runner, 2005-2021 Toyota Tacoma, 2010-2015 Ford F-150, and 2001-2006 Chevrolet Silverado 2500 HD applications where the listed transmission cooler configuration matches.