GMC Radiator - OEM 8971793282, Reach Cooling 42-11066

When your GMC W3500 Forward, W4500 Forward, or W5500 Forward needs a new radiator, Reach Cooling 42-11066 delivers an aftermarket replacement built to meet or exceed original equipment specifications, directly substituting for OEM part 8971793282. The aluminum, two-row down-flow core is constructed with B-type tubes featuring central reinforcement for greater pressure tolerance, while deep extrusion headers create a stronger tube-to-header joint that stands up to vibration and thermal expansion without leaking. Folded fin edges boost stability and heat disbursement, and thermal expansion cuts allow the core to expand and contract freely through normal heat cycles, extending service life and reducing failure rates. Longer header tabs add additional pressure resistance at the tank-to-header seam, and the included multi-fit attachments let one radiator cover multiple W-Series Forward applications without sacrificing OE fit. This radiator covers 1997-2002 GMC W3500 Forward in 3.9L, 4.8L, and 5.7L configurations, 1997-2002 GMC W4500 Forward in 3.9L, 4.8L, and 5.7L configurations, and 1997-2002 GMC W5500 Forward in 4.8L, 7.1L, and 7.8L configurations. If you are sourcing by OEM number, this part replaces 8971793282 with a proven aftermarket unit that installs correctly the first time.