Transmission Cooler 18in

The Transmission Cooler 18in from Specialty Products Company is a dual-pass fluid cooler engineered for serious enthusiasts who demand precision temperature management in modified vehicles. Whether you're running a high-performance automatic transmission, supercharger system, or pushing extended towing duty, this cooler addresses heat buildup that factory cooling systems simply cannot handle. Designed with aluminum construction and clear anodize finish, it's built to survive harsh underbody environments while maintaining reliable heat dissipation for thousands of miles.

This 18-inch transmission cooler features a dual-pass core design that forces fluid through the heat exchanger twice per cycle, maximizing contact time and extraction efficiency compared to single-pass units. The aluminum core is lightweight yet robust, and the clear anodized finish resists corrosion and oxidation in salt spray and high-humidity conditions. With 3/8-inch NPT female inlet and outlet ports, it accepts industry-standard transmission lines and allows flexible routing for custom installations. The cooler weighs just 3 pounds, making it ideal for weight-conscious builds where every pound matters.

Mechanics and fabricators favor this unit for restomod projects, race car builds, and heavily modified street vehicles where transmission or differential temperatures exceed OEM limits. Its compact 4.5 x 4 x 20.5-inch footprint fits tight engine bays while its aluminum core handles temperatures where plastic tanks fail. Installation requires basic plumbing fittings and hose routing; most technicians complete mounting and line connection in under an hour. This cooler is essential for any build running aggressive shift programs, synthetic fluid, or extended high-load duty cycles.