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❄️ Keep your transmission chill and your ride legendary!
- PLUG PLAY PERFECTION - Direct bolt-on design with included fittings and hose clips means zero hassle installation.
- BUILT FOR THE HARDEST WORK - Engineered for towing, racing, and heavy-duty diesel use—keeps your transmission cool under pressure.
- AMERICAN MADE QUALITY YOU CAN TRUST - Manufactured in the USA with premium materials for durability and reliability.
- PRECISION FIT FOR DURAMAX POWERHOUSES - Specifically crafted for 2003-2005 Chevy GMC LB7/LLY & LBZ/LMM models—no guesswork, just perfect fit.
- COOLER THAN STOCK COOLER THAN COMPETITION - Slash transmission fluid temps by up to 30°F for peak performance and longevity.
The PPE Performance Transmission Cooler is a direct bolt-on upgrade for 2003-2005 Chevy GMC Duramax trucks, reducing transmission fluid temperatures by 20-30°F. Designed for heavy-duty applications like towing and racing, it ensures longer transmission life and improved performance. Made in the USA, it includes all necessary fittings for a hassle-free installation.