Blue Bird Radiator - Blue Bird 10053625, Spectra Premium 2006-5103, Active Radiator Supply Company 310011, Reach Cooling 42-10304

When your Blue Bird TC2000 or Vision School Bus needs a new radiator, the Reach Cooling 42-10304 delivers aftermarket performance that meets or exceeds original equipment specifications. This radiator directly replaces Blue Bird 0115577 and cross-references Active Radiator Supply Company 3100-11, Spectra Premium 2006-5103, 1-800-Radiator 2400007, Serck FLA001015, and NAPA NR4210304, making it straightforward to verify the correct fit before you order. The aluminum core measures 636 mm wide by 631 mm tall with a 56 mm thickness, and the plastic tanks include a built-in 18-inch fan-side transmission oil cooler, matching the original configuration. Reach Cooling engineered this radiator with reinforced B-type tubes featuring central support to resist pressure and reduce tube failure, deep extrusion headers for stronger tube-to-header joints that stand up to vibration and thermal cycling, folded fin edges for improved stability and heat dissipation, and thermal expansion cuts that allow the core to breathe through normal heat cycles for longer service life. Fitment covers the Blue Bird TC2000 from 2002 through 2004 and the Blue Bird Vision School Bus from 2004 through 2022, spanning engine displacements from 5.0L to 8.3L. If you are sourcing by Blue Bird 0115577 or any of its known interchanges, Reach Cooling 42-10304 is the confirmed direct-fit aftermarket replacement.