EVIL ENERGY 5/16" Transmission Oil Cooler Kit — 8-Pass Black, Compact Aluminum with CPE Hoses

EVIL ENERGY 5/16" Transmission Oil Cooler Kit is an 8-pass aluminum alloy cooler with CPE hoses designed to lower ATF temperatures for vehicles with 5/16" ID transmission lines.

This compact, black 8-pass transmission oil cooler from EVIL ENERGY is built for universal fitment on most cars and light trucks that use 5/16" inside-diameter transmission lines. Constructed from durable aluminum alloy with a tube-and-fin design, it improves heat dissipation while the included CPE hoses handle high pressure and extreme temperatures. The kit ships with installation hardware and basic instructions so you can mount it where airflow is best—typically in front of the radiator or AC condenser.

How does this 8-pass cooler reduce transmission fluid heat?

The cooler's 8-pass layout sends ATF through multiple narrow channels and over many fins, increasing the fluid's exposure to air and the cooler's metal surface. That extra path length and surface area translates to faster heat transfer away from the fluid without adding excessive bulk. Tube-and-fin construction encourages airflow to sweep heat off the fins as the vehicle moves.

• Eight internal passes maximize fluid contact with cooling surfaces.
• Aluminum alloy body improves thermal conduction and resists corrosion.
• Tube-and-fin pattern increases air-to-fluid heat exchange.
• Compact profile (15.66" × 10" × 0.75") fits tighter front-end spaces.

Will it fit my vehicle and how do I install it?

This transmission cooler is intended for systems that use 5/16" ID transmission cooler hoses—confirm your lines before buying. Installation is straightforward: mount the cooler in a spot with unobstructed airflow, connect the cooler inline with your transmission lines, and secure the hoses and fittings. The kit includes instructions and hardware; basic hand tools are typically sufficient for most installations.

• Compatibility: compatible with most 5/16" ID transmission cooler lines.
• Mounting: choose a front-of-vehicle location with good airflow.
• Tools: basic hand tools required; installation instructions included.
• Space: 15.66" × 10" × 0.75" dimensions to verify fit clearance.

What are the hose and pressure specifications?

Hoses in the kit are made from chlorinated polyethylene (CPE), chosen for flexibility and resistance to heat and fluids. They are rated for a working pressure of 145 PSI with a bursting pressure up to 900 PSI, making them suitable for typical transmission system pressures and occasional pressure spikes. The hose material also performs across a broad temperature range.

• Hose material: CPE for durability and fluid resistance.
• Working pressure: 145 PSI for standard operation.
• Bursting pressure: 900 PSI for safety margin under spikes.
• Operating temperatures: -40°F to 257°F for wide climate use.

How durable and long-lasting is the EVIL ENERGY cooler?

The cooler’s aluminum alloy construction offers a lightweight yet robust heat exchanger that resists rust and handles road exposure. Fins and tubes are designed for efficient airflow while withstanding vibration and typical driving stresses. The included CPE hoses are rated for broad temperature extremes and high pressures to ensure reliable service life.

• Aluminum body provides corrosion resistance and weight savings.
• Tube-and-fin build tolerates vibration and daily driving conditions.
• CPE hoses withstand wide temperature swings and high pressures.
• Black finish conceals road grime and resists visual wear.

Who is this for? The EVIL ENERGY 5/16" Transmission Oil Cooler Kit is ideal for owners of cars or light trucks that run 5/16" transmission cooler lines and need a compact, efficient aftermarket cooler. It's a good choice for those who tow lightly, drive in hot climates, or want additional transmission fluid temperature control without a bulky unit. If you have limited space up front but still want improved cooling performance with reliable hoses and a durable aluminum core, this kit is a practical upgrade.