EVIL ENERGY Transmission Oil Cooler 5/16" Universal 8-Pass Tube-and-Fin Aluminum Black, 15.66"×10"

EVIL ENERGY's 8-pass, 5/16" transmission oil cooler is a universal aluminum tube-and-fin kit that reduces automatic transmission fluid temperature by increasing heat transfer and airflow.

This universal transmission cooler kit is built from lightweight aluminum and designed for vehicles that use 5/16" ID transmission lines. The 8-pass tube-and-fin core maximizes surface area for heat dissipation while a durable CPE hose handles high working pressures and a wide temperature range. The kit comes finished in black for corrosion resistance and a discreet under-hood appearance, and includes basic installation instructions for quick mounting where airflow is best.

How does this cooler lower transmission fluid temperature?

The 8-pass tube-and-fin design forces fluid through multiple narrow channels, increasing contact with cooling fins so heat transfers to incoming air more efficiently. As air moves across the fins, the fluid temperature drops before it returns to the transmission, helping maintain more stable operating temperatures under load.

• Eight internal passes for extended fluid path and heat exchange
• Tube-and-fin construction to increase surface area and airflow contact
• Aluminum core for rapid thermal conductivity and reduced weight

What are the key specifications and materials?

The cooler measures roughly 15.66" × 10" × 0.75" and accepts 5/16" inner-diameter transmission lines common on many cars. The core and end tanks are aluminum alloy for corrosion resistance and efficient heat transfer, while supplied hoses are made from CPE with high working and burst pressure ratings.

• Core size: 15.66" × 10" × 0.75" (approximate)
• Line compatibility: 5/16" inner-diameter transmission hoses
• Hose specs: CPE material, 145 PSI working pressure, 900 PSI burst pressure
• Operating temperature range: -40°F to 257°F

How difficult is installation and where should it be mounted?

Installation is intended to be straightforward for anyone comfortable with basic shop tools. The cooler performs best mounted where it receives unobstructed airflow — typically in front of the radiator or AC condenser — and brackets and instructions are included to help locate a secure mounting point.

• Mount where airflow is highest (front of vehicle recommended)
• Includes installation instructions and mounting hardware details
• Check for clearance and avoid contact with moving parts or heat sources

What maintenance and compatibility checks are recommended?

Periodic inspection of fittings, hoses and the cooler core helps ensure long service life. Verify line diameter and mounting space before buying, and check hoses and clamps for leaks after the first few drives following installation.

• Inspect hoses and fittings for leaks after installation
• Clean fins from debris and bugs to keep airflow unobstructed
• Confirm 5/16" ID line compatibility before purchase

Who is this for: EVIL ENERGY's 8-pass transmission oil cooler kit suits DIY enthusiasts and mechanics looking to improve transmission fluid cooling on cars that accept 5/16" ID lines. It's appropriate for drivers who tow light loads, do frequent highway driving, or want extra thermal protection during spirited use, provided there is adequate space to mount the cooler in a high-airflow location.