Ready to ship! This product is intended to mount on the passenger side.

These CNC press-brake formed .125" thick 5052 aluminum brackets are proudly made in the USA and are designed to make transmission cooler installation simple on automatic transmission Tacomas.

No drilling required — the bracket utilizes existing factory holes.

Designed to fit the Hayden 678, Hayden 698, and Derale 13613 transmission coolers. Adding an auxiliary transmission cooler helps reduce transmission temperatures and heat-related wear during towing, heavy loads, off-road use, stop-and-go traffic, and other severe-duty conditions.

Designed by an engineer. Built specifically for the Tacoma.

No universal brackets. No drilling. No guesswork.

I buy the components in bulk and negotiate better pricing so I can pass the savings on to you.

Cooler Options

Hayden 678

Traditional transmission cooler providing additional cooling capacity.

Hayden 698

Same physical size as the Hayden 678, but equipped with an internal temperature-controlled thermostat. The thermostat helps the fluid reach operating temperature faster in cold conditions while still providing additional cooling once the fluid warms up.

The Hayden 698 is recommended if you do cold starts in colder climates.

Hayden Thermostat Technology

Installation

No drilling required. The bracket utilizes existing factory holes for a clean, secure installation.

I've gotten Youtube videos made for most brackets.

FJ Cruiser Transmission Oil Cooler Installation Instructions

Bracket Features

• Proudly made in the USA
• CNC press-brake formed
• .125" thick 5052 aluminum
• No drilling required
• Utilizes existing factory holes
• Clean, secure mounting solution
• Fits Hayden 678, Hayden 698, and Derale 13613

Bracket Only Includes

• USA-made transmission cooler bracket
• All required fasteners

Hayden 678 Kit Includes

• USA-made transmission cooler bracket
• All required fasteners
• Hayden 678 non-thermostat cooler
• Additional 3/8" transmission cooler hose
• Edge trim guard
• (4) hose clamps

Hayden 698 Kit Includes

• USA-made transmission cooler bracket
• All required fasteners
• Hayden 698 thermostat cooler
• Additional 3/8" transmission cooler hose
• Edge trim guard
• (4) hose clamps

Complete kits require only approximately 1 quart of automatic transmission fluid to finish the installation.

I recommend Toyota WS ATF or Valvoline MaxLife ATF.

Optional Transmission Protection Upgrades

ABA Stainless Steel Hose Clamps — Made in Sweden

Upgrade your installation with genuine ABA stainless steel hose clamps, made in Sweden.

ABA clamps provide consistent 360° clamping force, excellent corrosion resistance, and a smooth inner band designed to help protect the hose.

• Made in Sweden
• Stainless steel construction
• Smooth inner band
• Consistent 360° clamping
• Excellent corrosion resistance
• Ideal for 3/8" transmission cooler hose
• Reusable

A hose clamp is a small part of the installation, but it's not a place I'd recommend cutting corners.

Magnefine Inline Transmission Filter

Add another level of protection with a Magnefine inline transmission filter.

The Magnefine combines fine filtration with a built-in magnet designed to capture ferrous wear particles before they continue circulating through the transmission. This is the exact filter used by OEM's such as Ford after transmission replacements.

• Fine filtration
• Built-in magnetic particle capture
• Designed for automatic transmission fluid
• 3/8" hose connections
• Compact inline design
• Helps protect transmission components
• Replaceable during service
• To be secured by user with cable ties or other means

Magnefine P/N 3810000

Gold Plug Magnetic Transmission Drain Plug — Made in USA

Link to purchase on my website

Make your next transmission fluid service more effective with a Gold Plug magnetic drain plug, made in the USA in Montana.

Gold Plug machines its drain plugs in-house in Montana and uses high-strength magnetic technology to capture ferrous wear particles.

The powerful magnet captures metal particles suspended in the transmission fluid, allowing debris to be removed during routine fluid service.

• Made in the USA
• Machined in Montana
• Stainless steel construction
• High-strength magnetic tip
• Captures ferrous wear particles
• Helps keep metal debris out of circulation
• Reusable
• Simple bolt-in replacement

Gold Plug MP07 M10x1.5 Magnetic Drain Plug

The magnetic drain plug captures debris inside the transmission, while the Magnefine filter provides ongoing filtration of circulating ATF.

Veepeak OBDCheck BLE Bluetooth OBD-II Scanner

Link to purchase on my website

I strongly recommend monitoring actual transmission temperatures, especially when towing, wheeling, or operating your vehicle under severe conditions.

The Veepeak OBDCheck BLE Bluetooth OBD-II adapter can be paired with a compatible free or paid phone app to monitor transmission temperature data directly from the vehicle in real time. Instead of relying on the factory temperature gauge, you can see exactly how hot the transmission is getting and how effectively your auxiliary cooler is controlling temperatures.

This is the OBD-II adapter I personally use for testing and monitoring my 2026 4Runner.

Recommended Apps

For vehicles that support it, I recommend the free Torque app for a simple, easy-to-use setup. For more advanced monitoring, I recommend the free Car Scanner ELM OBD2 app.

During my testing of the latest-generation 2024+ Toyotas, Car Scanner ELM OBD2 was the only app I was able to get to display transmission temperature data, making it my recommendation for the 2024+ Tacoma, 2024+ Land Cruiser, and 2025+ 4Runner.

Vehicle Compatibility

The Veepeak adapter is compatible with OBD-II vehicles, which generally includes U.S.-market vehicles from 1996 and newer. However, the data available through the OBD-II port varies by vehicle. An OBD-II port does not necessarily mean the vehicle provides transmission temperature data.

Important for older 4Runner owners: The 1996–1998 4Runner does not provide transmission temperature data from a factory ATF temperature sensor, so transmission temperature cannot be monitored through this adapter on those model years.

For supported vehicles, an OBD-II adapter is one of the easiest ways to stop guessing and start monitoring actual transmission temperatures.

Built for the Tacoma

USA-made bracket. USA-made Gold Plug. Swedish-made ABA clamps. Quality components selected specifically for transmission cooling.

Make your auxiliary transmission cooler installation clean, simple, and completely bolt-on — with no drilling required.

For those Tacoma's already equipped with the small factory cooler, you have the option of bypassing and removing that cooler or adding the axillary cooler to this system (recommended) for additional heat dissipation.

**This product can be paired with the electric fan kit available on my website.