Kenworth, Peterbilt Radiator - Northern Radiator 238886, LT9617, OEM F3161221122110, Reach Cooling 42-11019

When your Kenworth T170, T270, Peterbilt 330, or 335 needs a reliable cooling system repair, the Reach Cooling 42-11019 aftermarket radiator delivers OE-quality performance at a direct-fit solution. This aluminum downflow radiator replaces OEM HDC010178PAF, Northern Radiator 238886, and LT9617, covering 6.7L and 8.3L engine applications across those models. Reach Cooling engineers this unit with B-type tubes featuring central reinforcement for greater tolerance to pressure and drastically reduced tube failure risk. The deep extrusion header creates a stronger tube-to-header joint that resists vibration and thermal expansion, virtually eliminating tube-to-header leaks, while longer header tabs reduce the potential for tank-to-header leaks as well. Folded fin edges add stability and improve heat disbursement, and thermal expansion cuts allow the core to breathe through normal heat cycles for extended service life. Included multi-fit attachments let this single radiator cover multiple vehicle applications without sacrificing OE fit. The aluminum core measures 22.2 inches tall by 38.9 inches wide with a 2.05-inch thickness, features a top-left inlet and bottom-right outlet at 2.52-inch diameter, and ships with the frame included. If you are sourcing by OEM HDC010178PAF, Northern Radiator 238886, or LT9617, this is your correct drop-in replacement.