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Thumbnail Filmstrip of LB7|LLY Duramax Aluminum Performance Radiator Cold Case GMT574A Images
Fix the split end tank on a 2001-2005 Chevrolet or GMC 6.6L Duramax before coolant runs out at the crimp. The factory tanks are plastic, crimped to the core, and that seam is what opens up. Cold Case GMT574A is a polished, TIG-welded aluminum radiator that bolts into the factory location on automatic trucks.
- Aluminum build: Two 1-inch tubes and 16 corrugated fins per inch sit in a 3-inch-thick core, so coolant has a wide tube and the air has more fin area than a clogged stock core.
- Part number: Cold Case GMT574A fits 2001-2005 Chevrolet and GMC trucks with the 6.6L Duramax, both LB7 and LLY.
- Size: The core is 19.2 inches tall and 34 inches wide. Overall height is 20.85 inches, overall width is 42.5 inches at the bolt holes, and thickness is 3 inches. The transmission cooler port is 7/8-inch NPT.
- Pressure test: The radiator is pressure tested so a leak is caught before the truck is filled.
- Does not fit: Manual-transmission trucks. This radiator is for automatic transmissions only. It also does not fit 2006-and-later Duramax trucks.
- Warranty: Cold Case covers this radiator against material and workmanship defects for the life of the radiator.
Order today to secure your replacement. Confirm the truck is an automatic 2001-2005 6.6L Duramax before you order.
Fix the split end tank on a 2001-2005 Chevrolet or GMC 6.6L Duramax before coolant runs out at the crimp. The factory tanks are plastic, crimped to the core, and that seam is what opens up. Cold Case GMT574A is a polished, TIG-welded aluminum radiator that bolts into the factory location on automatic trucks.
Aluminum build: Two 1-inch tubes and 16 corrugated fins per inch sit in a 3-inch-thick core, so coolant has a wide tube and the air has more fin area than a clogged stock core.
Part number: Cold Case GMT574A fits 2001-2005 Chevrolet and GMC trucks with the 6.6L Duramax, both LB7 and LLY.
Size: The core is 19.2 inches tall and 34 inches wide. Overall height is 20.85 inches, overall width is 42.5 inches at the bolt holes, and thickness is 3 inches. The transmission cooler port is 7/8-inch NPT.
Pressure test: The radiator is pressure tested so a leak is caught before the truck is filled.
Does not fit: Manual-transmission trucks. This radiator is for automatic transmissions only. It also does not fit 2006-and-later Duramax trucks.
Warranty: Cold Case covers this radiator against material and workmanship defects for the life of the radia[...]
Fix the split end tank on a 2001-2005 Chevrolet or GMC 6.6L Duramax before coolant runs out at the crimp. The factory tanks are plastic, crimped to the core, and that seam is what opens up. Cold Case GMT574A is a polished, TIG-welded aluminum radiator that bolts into the factory location on automatic trucks.
- Aluminum build: Two 1-inch tubes and 16 corrugated fins per inch sit in a 3-inch-thick core, so coolant has a wide tube and the air has more fin area than a clogged stock core.
- Part number: Cold Case GMT574A fits 2001-2005 Chevrolet and GMC trucks with the 6.6L Duramax, both LB7 and LLY.
- Size: The core is 19.2 inches tall and 34 inches wide. Overall height is 20.85 inches, overall width is 42.5 inches at the bolt holes, and thickness is 3 inches. The transmission cooler port is 7/8-inch NPT.
- Pressure test: The radiator is pressure tested so a leak is caught before the truck is filled.
- Does not fit: Manual-transmission trucks. This radiator is for automatic transmissions only. It also does not fit 2006-and-later Duramax trucks.
- Warranty: Cold Case covers this radiator against material and workmanship defects for the life of the radiator.
Order today to secure your replacement. Confirm the truck is an automatic 2001-2005 6.6L Duramax before you order.