Chevrolet, GMC Radiator - Active Radiator Supply Company 5800-13, Superior Cooling Systems 231233, LT9156, Reach Cooling 42-10419

The Reach Cooling 42-10419 is an aftermarket radiator built as a direct replacement for 1995-1998 Chevrolet and GMC medium-duty trucks running 6.0L and 7.0L engines. It replaces OEM 20528 and cross-references Active Radiator Supply Company 5800-13, Superior Cooling Systems 231233, and LT9156, making it straightforward to confirm you have the right part before it leaves the shelf. This cross-flow radiator fits the Chevrolet B7, C60 Kodiak, C6500 Kodiak, C7500 Kodiak, C70 Kodiak, and the GMC B7, C6000 Topkick, C6500 Topkick, C7000 Topkick, and C7500 Topkick. The aluminum core features B-type tubes with central reinforcement for greater pressure tolerance, deep extrusion headers that lock tube-to-header joints against vibration and thermal movement, folded fin edges for added stability and heat disbursement, and thermal expansion cuts that allow the core to breathe through normal heat cycles without cracking or leaking. Longer header tabs provide additional resistance to tank-to-header leaks. A transmission oil cooler is integrated, and a filler neck is included. The radiator cap and frame are not included. Designed and manufactured to meet or exceed original equipment specifications, this is the correct-fit replacement for keeping your Kodiak or Topkick running cool mile after mile.