Blue Bird, Freightliner Radiator - Freightliner 1040293AS, Northern Radiator 238740, Spectra Premium 2001-1721, Reach Cooling 42-10451

When a Blue Bird or Freightliner school bus radiator needs replacing, Reach Cooling 42-10451 is the aftermarket solution built to match original equipment specs. This aluminum-core, plastic-tank, down-flow radiator directly replaces Freightliner 1103748, the primary OEM reference, and also cross-references Northern Radiator 238740, Active Radiator Supply Company 310081, Spectra Premium 2001-1721, 1-800-Radiator 2400006, and Serck FLA001032. The unit includes a transmission oil cooler and mounting frame, so you get everything needed for a clean installation. Fitment covers a wide range of Blue Bird Vision School Bus applications from 2004 through 2022 across 5.0L, 6.7L, 6.8L, 7.2L, 7.3L, and 8.1L engines, along with Freightliner B2 (2008-2013, 6.4L and 6.7L and 7.2L), Freightliner S2 (2007-2011, 6.4L and 6.7L), Freightliner S2C (2013, 6.7L), and the Freightliner/Sterling FLT C2 School Bus from 2010-2012. Reach Cooling designs every radiator with reinforced B-type tubes, deep extrusion headers, folded fin edges, and thermal expansion cuts to reduce leak points and extend service life. For fleets and independent shops that need a confirmed correct-fit replacement for Freightliner 1103748, this is the part.