1. Transmission Coolers
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  6. 20W x 7-1/2T x 3/4D Inch
Flex-a-lite Transmission Cooler - Tube and Fin - J Return - Barbed Fitting - Class IV

Flex-a-lite Transmission Cooler - Tube and Fin - J Return - Barbed Fitting - Class IV

Item # FLX4120R
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FLX4120R - 20W x 7-1/2T x 3/4D Inch Flex-a-lite Tube-Fin Cooler
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Lowest Prices for the best transmission coolers from Flex-a-lite. Flex-a-lite Transmission Cooler - Tube and Fin - J Return - Barbed Fitting - Class IV part number FLX4120R can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Flex-a-lite Transmission Coolers - FLX4120R

  • Tube-Fin Cooler
  • Class V
  • With 3/8 Inch Hose Barb Inlets
  • Flex-a-lite
  • 20W x 7-1/2T x 3/4D Inch

The Translife transmission cooler kit provides additional cooling to protect your transmission or power steering. Cooler transmission oil gives more reliable, consistant shifts under racing conditions and prevents transmission damage under extreme towing conditions.

  • Turbulators inside tubes for superior heat transfer
  • Overall dimensions: 20" wide x 7-1/2" tall x 3/4" deep
  • Kit includes:
    • Transmission cooler with J-return
    • 4' Rubber hose
    • Hose clamps
    • Nylon nuts and bolts for mounting
  • 1/2" Tube diameter
  • 3/8" Barbed fitting
  • 6 Pass configuration
  • Class IV

4120R Flexalite Transmission Cooler with Barbed Fitting and J Return

Video of Flex-a-lite Transmission Cooler - Tube and Fin - J Return - Barbed Fitting - Class IV

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Flex-a-lite Transmission Coolers - Tube-Fin Cooler - FLX4120R Review

Today we're going to take a look at the Flex-A-Lite Translife Transmission Oil Cooler, it has the 3/8" barb fittings with the J return and a class IV rating. This Translife transmission cooler kit will provide additional cooling to protect your automatic transmission from overheating. It is designed to mount in front of your radiator or your air conditioning condenser. Cooler transmission oil will give you more reliable, consistent shifts, and it helps prevent transmission damage which could happen under extreme towing conditions. This kit includes everything shown here on the table, the transmission cooler, 4' rubber hose, the hose clamps, male and female hose adapters, installation hardware for the cooler, and a nice set of detailed installation instructions for installing everything. The tubes on these are a 1/2" diameter brass tube and what's unique on this cooler is on the inside of the tubing they actually use a high twist turbulator design and what it allows inaudible 00:00:54 the fluid is as the fluid flows through it actually causes it to twist which will improve the heat transfer. If you notice it has the 3/8" barbed fittings on each end and at the one end it has the J return. This cooler is a 6 pass configuration, they call it that because it'll go through the heat exchanger 6 times, the fluid does, and you can see 1, 2, 3, 4, 5, and 6, so it goes through 6 different times.

The cooler itself is aerospace epoxy construction, it does have a class IV rating, and I want to give you some measurements on the cooler itself. Going to give you the width which is edge to edge, like here, if we take a tape measure, go edge to edge, you can see right at 20" overall width. The height, from the very bottom to very top, going to be right at 7-1/2" tall, an the depth is going to be right at 3/4" deep. That should do it for the review on the Flex-A-Lite Translife Transmission Oil Cooler with the 3/8" barbed fittings and the J return with a class IV rating.


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Info for this part was:

Installed by:
Jeff D
Written by:
Brian B
Updated by:
Jessie B

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