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Hayden Transmission Coolers

Hayden Automotive Transmission Coolers - Transmission Cooler Guide

Simple and effective, that’s what Hayden does when it comes to transmission coolers. Their transmission coolers will provide great cooling without breaking the bank and are easy to install with their included universal installation kits. Whether you drive a compact daily driver or an RV, Hayden has a transmission cooler for you!


Hayden Rapid Cool Transmission Coolers

Hayden’s rapid-cool transmission coolers feature a unique plate and fin construction that provides highly efficient transmission cooling in a compact, space-efficient design.

  • 33% more efficient than a comparable tube and fin design
  • Pre-drilled mounting plates for easy installation
  • Four sizes available to fit a wide range of applications
  • Internal turbulation for efficient heat transfer
  • 3/8” push-on fittings for quick and easy installation

Hayden Internal By-Pass Transmission Coolers

Hayden’s patented internal pressure by-pass coolers allow the vehicle’s transmission to reach optimum operating temperature quickly by routing the fluid through the by-pass channel of the cooler until fluid temperature increases.


This design is optimal for vehicles in colder climates to allow them to reach proper operating temps faster which improves fuel economy and helps reduce friction on internal components while also keeping trans temps cool within a safe range at all times. Hayden’s internal pressure by-pass design incorporates an integrated valve that eliminates the need for external valves and additional plumbing at installation.

  • Bi-directional flow
  • 33% more efficient than traditional coolers
  • High efficiency louvered fins and special oil turbulators
  • 100% brazed aluminum construction offer superior strength and reliability
  • Ideal for cooler climates
Hayden Automotive 687 Transmission Cooler - Transmission Cooler Guide
Hayden Transmission Coolers / Transmission Coolers

Hayden 687 Transmission Cooler Review

Just like the Hayden 677, the 678 is a great mid-sized trans cooler option for your daily driven vehicle.

Hayden 687 Transmission Cooler Review Read More
Hayden 678 transmission cooler - Transmission Cooler Guide
Hayden Transmission Coolers / Transmission Coolers

Hayden 678 Transmission Cooler Review

With over 350 reviews, the Hayden Rapid Cool 678 is one of the top rated transmission coolers on the market. Learn why!

Hayden 678 Transmission Cooler Review Read More
Hayden Automotive Rapid-Cool 676 Transmission Cooler - Transmission Cooler Guide
Hayden Transmission Coolers / Transmission Coolers

Hayden 676 Transmission Cooler Review

One of the smaller coolers in the Hayden lineup, the 676 is a great option for those looking to improve the trans cooling capabilities of their daily driver!

Hayden 676 Transmission Cooler Review Read More
Hayden 677 transmission cooler - Transmission Cooler Guide
Hayden Transmission Coolers / Transmission Coolers

Hayden 677 Transmission Cooler Review

The Hayden 677 is a small to medium sized cooler that is perfect for any daily driven car or smaller SUV!

Hayden 677 Transmission Cooler Review Read More
Hayden Automotive 679 transmission cooler - Transmission Cooler Guide
Hayden Transmission Coolers / Transmission Coolers

Hayden 679 Transmission Cooler Review

Ebay Rating:  4.9/5 Summit Racing Rating:  4.8/5 Amazon Rating:  4.7/5 Shop On Amazon The Hayden Automotive 679 (1679) offers superior cooling to keep your transmission temperature in …

Hayden 679 Transmission Cooler Review Read More

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