Transmission Oil Cooler Kit 6 Pass - Compact HighEfficiency Cooler

In this review the Transmission Oil Cooler Kit is evaluated as a compact, universal solution for drivers who push their vehicles hard and need reliable temperature control. The bottom line: this kit offers a practical way to cut transmission oil temperatures with a lightweight T6061 aluminum core and a 6pass tube layout that directs fluid through highefficiency turbulators. It suits street enthusiasts and track users who want a straightforward bypass or auxiliary cooler without complex plumbing or heavy weight.

Key Features

• 6Pass Tube Design: The six passes and internal turbulators maximize fluid agitation for improved heat transfer and consistent cooling under load.
• Premium Aluminum Construction: Built from T6061 aluminum alloy for a balance of strength and low weight, resisting corrosion in demanding engine bays.
• Compact Dimensions: At 13.2 in x 5 in x 0.75 in the cooler fits tight spaces while still providing meaningful capacity for auxiliary cooling.
• Wide Operating Range: Rated for -40 F to 257 F and 145 psi operating pressure, it is suitable for most street and light track environments.
• Universal 5/16 in Fitment: Works with most transmission lines that use 5/16 in ID hose, making it a broadly compatible retrofit option.
• Complete Mounting Kit: The package includes hose, clamps, mounting rods, clips and foam pads to simplify installation where airflow is available.

Who It's For

This kit is best for drivers with modified street cars, light track use vehicles, or anyone who regularly tows or drives aggressively and needs to manage transmission or differential oil temperatures. Its compact footprint and universal hose sizing make it appropriate for many engine bays where space is limited.

It is not aimed at heavy commercial trucks or highhorsepower drag rigs that demand multirow, large core coolers; those buyers should look for larger capacity, dedicated radiators designed for extreme duty. Also confirm hose measurements before purchase to ensure a true universal fit.

Pros & Cons

Pros

• Efficient 6pass design with turbulators for enhanced heat transfer in a small package.
• Lightweight, corrosionresistant T6061 aluminum construction that fits tight spaces.
• Complete mounting and hose kit reduces the need for extra parts during installation.

Cons

• Limited core size means it is best as an auxiliary or bypass cooler rather than a replacement for large heavyduty coolers in extreme use.

Specifications

Material	T6061 aluminum alloy
Core Dimensions	13.2 in x 5 in x 0.75 in
Passes	6 pass tube design
Hose Size	5/16 in ID (8 mm)
Operating Pressure	145 psi
Bursting Pressure	900 psi
Operating Temperature	-40 F to 257 F

Our Verdict

The Transmission Oil Cooler Kit is a sensible, valuefocused choice for enthusiasts who need to lower transmission or differential oil temperatures without a heavy or bulky radiator. Its highefficiency turbulators and aluminum build deliver effective cooling for spirited street driving and occasional track use, while the included hardware keeps installation straightforward. Buy it if you need an auxiliary cooler that fits in tight spaces and provides measurable temperature relief.

Frequently Asked Questions

Will this cooler fit my vehicle?
Measure your transmission cooler lines to confirm they are 5/16 in ID and check for available installation space of roughly 13.2 in x 5 in.

How much temperature reduction can be expected?
When used as a bypass or auxiliary cooler it can reduce oil temperature significantly in many setups, with reported reductions up to about 50 F depending on airflow and vehicle load.

Is installation difficult?
The kit includes hose, clamps and mounting hardware to simplify install; choose a location with good airflow and clear debris for best results.