EVIL ENERGY transmission oil cooler kit 5/16" ID, 4-pass compact black aluminium - low-profile, reinforced hoses

EVIL ENERGY's 4-pass 5/16" transmission oil cooler kit is a compact black aluminum alloy cooler plus CPE hose set built to lower automatic transmission fluid temperature for most vehicles with 5/16" ID lines.

This universal transmission cooler kit pairs a multi-pass tube-and-fin cooler with reinforced CPE hoses and all mounting hardware to provide a straightforward cooling upgrade for cars, trucks and SUVs that have 5/16" inner-diameter transmission lines. The low-profile 15.66" × 5" × 0.75" cooler fits in tight spaces and the 4-pass design increases fluid dwell time so heat transfers into the fins and out into passing air. The kit is fully black for a discreet appearance and includes step-by-step instructions for easier installation.

How does this cooler reduce transmission fluid temperature?

The four-pass core forces fluid through multiple passages so it spends more time inside the cooler, while the tube-and-fin construction creates a large surface area for heat transfer. Air flowing over the fins carries heat away efficiently, lowering fluid temperature without adding a bulky radiator.

• 4-pass design increases fluid dwell time for better cooling.
• Tube-and-fin aluminum core maximizes surface area for heat rejection.
• Low-profile dimensions allow placement in tight front-end or behind-bumper locations.
• Black finish resists visual wear and blends with engine bay components.

Will this kit fit my vehicle and the factory lines?

The kit is intended for vehicles with 5/16" (inner diameter) transmission cooler lines. It is a universal, aftermarket cooler; verify clearance where you plan to mount it and ensure line routing can reach the inlet and outlet fittings. Basic hand tools are all that’s typically required for installation.

• Compatible with most cars, trucks and SUVs using 5/16" ID lines.
• Compact 15.66" x 5" x 0.75" cooler fits many tight locations.
• Includes clamps, brackets and installation instructions for common setups.
• Confirm space and hose routing before purchase for best fitment.

What materials and durability features does the kit include?

The cooler core is made from aluminum alloy for light weight and good thermal conductivity. Hoses are manufactured from chlorinated polyethylene (CPE) with a high working pressure and broad temperature tolerance, giving resilience against heat and pressure in transmission circuits.

• Aluminum alloy core for efficient heat transfer and corrosion resistance.
• CPE hoses rated to 145 PSI working pressure and 900 PSI burst pressure.
• Operational temperature range from -40°F to 257°F supports seasonal extremes.
• Robust fittings and clamps included for secure connections.

How hard is installation and where should I mount it?

Installation is designed to be straightforward and accessible to most DIYers with basic tools. Choose a location with consistent airflow—front of the radiator, behind the grille, or ahead of the existing transmission cooler—to maximize performance. The kit's instructions walk through routing, clamping and testing for leaks.

• Simple bolt-on fitment with provided hardware and instructions.
• Mount where airflow is unobstructed for best cooling effect.
• Check for clearance from moving parts and hot exhaust components.
• Pressure-test connections after installation to ensure leak-free operation.

Who is this for? EVIL ENERGY's 5/16" 4-pass transmission oil cooler kit is suited to vehicle owners seeking a compact, cost-effective upgrade to help control transmission fluid temperatures. It fits drivers who need an unobtrusive cooler for daily commuting, towing light loads, or improving longevity of aging transmission systems, provided their vehicle uses 5/16" ID lines and has adequate mounting space.