Mack, Volvo Radiator - Mack 2MF559M2, Volvo Truck 21095127, Northern Radiator 239181, Reach Cooling 42-10354

Reach Cooling 42-10354 is an aftermarket radiator built to replace Mack 2MF559M2 and Volvo Truck 21000188 across a broad range of heavy-duty Mack and Volvo applications. This downflow unit features an aluminum core with plastic tanks, a built-in transmission oil cooler on the engine side, a top-left inlet, and a bottom-right outlet - matching the original layout so installation is straightforward. It also cross-references Northern Radiator 239050, Active Radiator Supply Company 730015, Spectra Premium 20013018, and 1-800-Radiator 2400210. Fitment covers Mack CHN, CHU, CV, GU4, GU5, GU7, and GU8 models from 2006 through 2016, as well as Volvo VAH and VHD models from 2006 through 2016, spanning engine displacements from 8.9L up to 12.8L. Reach Cooling engineers these radiators with reinforced B-type tubes, deep extrusion headers for a stronger tube-to-header joint, folded fin edges for improved heat dissipation, and thermal expansion cuts to reduce fatigue over repeated heat cycles. Whether you are servicing a Mack Granite GU-series or a Volvo VHD, this radiator is confirmed to meet or exceed the original equipment specification, giving you a reliable, correctly fitting replacement backed by a manufacturer with global heavy-truck cooling expertise.