Kenworth Radiator - Kenworth PY091001, Northern Radiator 238927, Spectra Premium 20012518P, Reach Cooling 42-11284

When your 2023-2024 Kenworth T680 needs a new radiator, the Reach Cooling 42-11284 is the aftermarket direct replacement built to meet or exceed OE specifications. It crosses to Kenworth PY091001, Northern Radiator 238927, Active Radiator Supply Company 770057, and 1-800-Radiator 2401492, covering the full engine lineup including 8.9L, 10.8L, 11.9L, 12.9L, and 14.9L applications. The two-row aluminum core with plastic tanks uses a down-flow design with B-type tubes featuring central reinforcement for greater tolerance to operating pressure, drastically reducing the chance of tube failure. Deep extrusion headers create a stronger tube-to-header joint that stands up to the vibration and thermal cycling a working T680 puts out every day, virtually eliminating tube-to-header leaks. Folded fin edges add stability and improve heat disbursement, while thermal expansion cuts let the core breathe naturally through heat cycles to extend service life. Longer header tabs keep tank-to-header connections tight under pressure, and included multi-fit attachments allow precise, OE-quality fitment across multiple configurations. Reach Cooling designs and manufactures to OE standards, so this radiator drops in correctly and performs reliably from day one.