Blue Bird Radiator - Blue Bird 011557, Northern Radiator 239283, Active Radiator Supply Company 310011, Reach Cooling 42-10656

When the cooling system on a Blue Bird Vision School Bus needs attention, the Reach Cooling 42-10656 is the aftermarket radiator built to restore performance without the hassle of fabrication or modification. This unit is a direct replacement for Blue Bird 011557 and also cross-references Northern Radiator 239283, Active Radiator Supply Company 310011, NAPA NR4210656, Paccar Parts RAD42-10656TRP, and Thermal Solutions Manufacturing 437217, covering the full spread of popular interchange numbers mechanics and fleet buyers search by. Fitment spans the Blue Bird Vision School Bus from 2004 through 2022, accommodating 5.0L, 6.7L, 6.8L, 7.2L, 7.3L, and 8.1L engine configurations, with additional coverage for 2004-2014 Bluebird Vision CV and School Bus applications. The aluminum core and plastic tank construction is matched with a built-in 18-inch fan-side transmission oil cooler, a downflow design, and a frame included for straightforward installation. Reinforced B-type tubes with central support, deep extrusion headers, folded fin edges, and thermal expansion cuts are all part of the design, contributing to durability under the vibration and thermal cycling demands of daily school bus routes. Reach Cooling 42-10656 meets or exceeds original equipment specifications, making it a reliable, correctly fitting replacement for Blue Bird 011557 in demanding fleet service.