Kenworth, Peterbilt Radiator - Northern Radiator 238933, Active Radiator Supply Company 7700-38, Serck FLA000530, Reach Cooling 42-10989

When your Kenworth T800 or Peterbilt 382 needs a new radiator, Reach Cooling 42-10989 delivers a direct aftermarket replacement engineered to meet or exceed OEM F3161024333420 specifications. This radiator also cross-references Northern Radiator 238933, Active Radiator Supply Company 7700-38, Serck FLA000530, and LT9255, making it straightforward to confirm the correct part for your application. The aluminum core uses B-type tubes with central reinforcement for greater pressure tolerance and a drastically reduced probability of tube failure. Deep extrusion headers create a stronger tube-to-header joint that resists vibration and thermal expansion, virtually eliminating that common leak point. Folded fin edges add stability and improve heat disbursement, while thermal expansion cuts allow the core to breathe through normal heat cycles for extended service life. Longer header tabs add further pressure resistance at the tank-to-header joint. The radiator ships with a frame and multi-fit attachments for broad vehicle coverage without sacrificing OE fit. Fitment covers Kenworth T800 models from 2010 through 2012 across a wide range of engine displacements, plus the 2011-2012 Peterbilt 382 with the 8.9L engine. When you need a verified drop-in for OEM F3161024333420, Reach Cooling 42-10989 is the confirmed correct-fit solution.