Freightliner Radiator - Freightliner 537217025, Northern Radiator 238850, Active Radiator Supply Company 800128, Reach Cooling 42-10994

When your 2017 Freightliner Cascadia needs a new radiator, the Reach Cooling 42-10994 is a proven aftermarket replacement built to meet or exceed original equipment specifications. It directly replaces Freightliner 537217025, Northern Radiator 238850, Active Radiator Supply Company 800128, and OEM 1102846, covering Cascadia applications across the 11.9L, 12.8L, 14.8L, 14.9L, and 15.6L engines. The aluminum core is built with B-type tubes featuring central reinforcement for greater pressure tolerance, dramatically reducing the risk of tube failure under the thermal and vibration stress common in long-haul operation. Deep extrusion headers create a stronger tube-to-header joint that resists both vibration and thermal cycling, virtually eliminating the header leaks that sideline trucks. Folded fin edges add core stability and improve heat disbursement, while thermal expansion cuts allow the core to breathe through normal heat cycles for longer service life. Longer header tabs provide added pressure resistance against tank-to-header leaks. A transmission oil cooler with 12-inch fitting spacing is included. Multi-fit attachments let a single unit cover multiple Cascadia configurations for a clean, OE-style installation. If you are sourcing by Freightliner 537217025 or any of its cross-references, the Reach Cooling 42-10994 is the correct direct-fit replacement for your truck.