12 Inch Dual Pass Heat Sink Aluminium Transmission Oil Cooler

This compact heat sink is ideal for cooling transmission fluid, engine oil, and other automotive fluids efficiently. Its unique dual pass design features external and internal fins that maximize heat transfer from the fluid through the thick aluminum core. Measuring only 3 inches in diameter, it can be mounted in tight spaces like frame rails, under radiators, or on floorboards. The satin finish aluminum conducts heat away while preventing warping or twisting even under heavy loads. Connections are 1/4 inch NPT, making installation with the supplied barbs straightforward. With high conductivity and a small footprint, this heat sink reliably dissipates heat with minimal airflow - exactly what's needed to keep fluid temperatures in check.