9 Row Plate & Fin Cooler (1/2in FPT)

The 9 Row Plate & Fin Cooler from Derale is a compact yet highly efficient thermal management solution designed for engine builders, hot rod enthusiasts, and mechanics seeking reliable fluid cooling without sacrificing underhood space. This cooler excels in applications where transmission fluid, engine oil, or coolant temperatures climb under sustained load—whether you're towing, track driving, or running modified powerplants that generate significant heat.

The 1/2-inch female pipe thread (FPT) connections make integration straightforward into existing cooling lines, making it an accessible upgrade for custom builds and restoration projects alike. The nine-row plate and fin core design maximizes surface area for heat dissipation while maintaining a compact footprint—critical when routing cooler lines through tight engine bays or custom fabrication scenarios. Aluminum construction provides excellent thermal conductivity and corrosion resistance, ensuring long service life in high-temperature environments.

This cooler is ideal for transmission upgrades in trucks and SUVs, oil cooling in naturally aspirated or supercharged engines, and other applications where efficient heat management is crucial. At just 1.5 lbs, the weight penalty is negligible, and the modest 11.75 × 2.3 × 13.6-inch profile fits where larger transmission coolers cannot.