EVIL ENERGY 5/16" Transmission Oil Cooler — 6-Pass Aluminum Tube-and-Fin, Black 15.66"×7.5" Compact Kit

EVIL ENERGY's 5/16" transmission oil cooler is a compact 6-pass aluminum tube-and-fin kit designed to reduce automatic transmission fluid temperature for most vehicles with 5/16" ID lines.

This universal transmission cooler kit pairs a 6-pass tube-and-fin core with durable fittings and CPE hoses to help lower ATF temperatures when mounted in a high-airflow location. Built from aluminum alloy for lightweight strength, the cooler measures 15.66" × 7.5" × 0.75" and connects to standard 5/16" transmission cooler lines. The kit is finished in black for corrosion resistance and discreet styling, and includes installation instructions to simplify fitment for many common cars and trucks.

How does this cooler lower transmission fluid temperatures?

The 6-pass tube-and-fin design increases heat transfer by routing ATF through multiple thin tubes while fins create a larger air-contact surface. As air moves across the fins, heat dissipates rapidly from the fluid inside the tubes. This passive airflow cooling is most effective when the cooler is mounted where it receives direct airflow from vehicle motion or the fan.

• Six internal passes for extended fluid contact with cooling surfaces
• Aluminum alloy core and fins for fast heat conduction
• Thin fins increase surface area to accelerate air-to-fluid heat exchange

Will this fit my car and how hard is it to install?

The EVIL ENERGY cooler is a universal kit for transmissions that use 5/16" ID cooler lines; confirm your vehicle's line size before ordering. Installation is straightforward for most DIYers and mechanics when there is adequate frontal airflow and mounting space. Instructions and necessary hardware are included, but some vehicles may require brackets or minor trimming for a custom fit.

• Compatible with 5/16" internal diameter transmission cooler lines
• Compact dimensions: 15.66" × 7.5" × 0.75" to fit tight spaces
• Includes hoses and fittings; basic hand tools required for installation

What materials and performance specs should I expect?

The cooler core is aluminum alloy for lightweight durability and efficient thermal transfer. Hoses are made from CPE (chlorinated polyethylene) rated for everyday transmission temperatures and pressures, giving a reliable service range across common operating conditions. Working pressure and temperature ratings ensure the hoses handle typical transmission system demands without compromising safety.

• Cooler: aluminum alloy core and fins for corrosion resistance
• Hose: CPE material with 145 PSI working pressure, 900 PSI burst pressure
• Temperature range: works from -40°F up to 257°F for broad climate compatibility

Where should I mount the cooler for best results?

For optimal cooling, mount the EVIL ENERGY unit where it receives uninterrupted airflow—typically in front of the radiator or condenser, or behind a high-flow bumper opening. Avoid locations blocked by accessories or debris and ensure secure mounting to prevent vibration. The slimmer profile allows installation in tighter spaces while still offering effective heat dissipation when exposed to moving air.

• Recommended: front-of-vehicle radiator or condenser area for direct airflow
• Keep clear of engine exhaust and debris to maintain consistent cooling
• Secure mounting reduces vibration and prolongs hose and fitting life

Who is this for: Drivers looking to improve transmission fluid cooling in daily drivers, light trucks, and older vehicles that run heavy loads or tow occasionally. It's suited to DIY installers and professional mechanics who need a compact, efficient, and universal 5/16" transmission cooler with durable aluminum construction and high-pressure CPE hoses. If you want a straightforward aftermarket cooling upgrade that fits many applications and is built for dependable service, this kit is a practical choice.