Lucky Seven 40k Transmission Oil Cooler, 40,000 GVW

Heavy-duty transmission cooling for big rigs – The Lucky Seven LPD47391 40,000 GVW transmission oil cooler is built for large trucks, trailers, and towing rigs that demand superior heat dissipation. Engineered with low-pressure drop technology, it minimizes energy loss while maximizing transmission efficiency, reducing wear on critical components.

This kit includes all necessary mounting hardware—bolts, fasteners, and brackets—for a quick, secure install. Designed for long-term reliability, it maintains optimal transmission temps to extend component life, improve fuel economy, and cut costly repair risks. Backed by a lifetime warranty and expert after-sales support, the LPD47391 delivers unmatched cooling protection for heavy vehicles.