Mack, Volvo Radiator - Northern Radiator 239048, Active Radiator Supply Company 7300-18, Serck FLA000624, Reach Cooling 42-11022

When your Mack or Volvo heavy-duty radiator needs replacing, the Reach Cooling 42-11022 delivers an aftermarket solution engineered to meet or exceed OEM M5736100 specifications. This down-flow aluminum core radiator also cross-references Northern Radiator 239048, Active Radiator Supply Company 7300-18, Serck FLA000624, and LT1181, making it straightforward to verify the correct fitment against your current part. The aluminum core measures 39.37 inches tall by 34.17 inches wide with a 2.05-inch core thickness, and includes a transmission oil cooler with fittings spaced 11.5 inches apart. B-type tubes with central reinforcement reduce the probability of tube failure under heavy-duty operating pressure, while the deep extrusion header virtually eliminates tube-to-header leaks caused by vibration and thermal cycling. Folded fin edges improve stability and heat disbursement, and thermal expansion cuts allow the core to breathe through normal heat cycles for extended service life. Multi-fit attachments let this single radiator cover a broad range of applications without sacrificing OE fit. Fitment includes 2016-2019 Mack CHU, GU4, GU5, GU7, and GU8, 2019-2021 Mack Granite, 2016-2020 Volvo VAH, and 2016-2021 Volvo VHD across 8.9L, 10.8L, and 12.8L engines. Order with confidence knowing this is a confirmed direct replacement for OEM M5736100.