Western Star Radiator - Western Star WSRP91840B2, 1-800-Radiator 2400984, Serck FLA002227, Reach Cooling 42-10495

When your Western Star 4900SA needs a new radiator, Reach Cooling 42-10495 delivers a direct aftermarket replacement built to meet or exceed OE specs. This radiator is a confirmed cross for Western Star 529622000 and 0529622000, as well as Serck FLA002227, 1-800-Radiator 2400984, NAPA NR4210495, and LT9184 - covering the full range of popular interchanges mechanics and fleet buyers search for. Fitment spans the 2011-2015 Western Star 4900SA in multiple engine displacements: 12.7L, 14.0L, 14.6L, 14.8L, and 15.6L, plus the 2011 model year 12.8L application. The aluminum core uses B-type tubes with central reinforcement for improved pressure tolerance and thermal expansion cuts that let the core breathe through normal heat cycles, reducing the failure rates that plague lesser-quality aftermarket parts. Deep extrusion headers create a stronger tube-to-header joint that resists vibration and thermal stress, while longer header tabs guard against tank-to-header leaks. A transmission oil cooler is included, with 12-inch fitting spacing, making this a comprehensive drop-in unit. The down-flow design features a top-right inlet and bottom-right outlet to match the original routing of your 4900SA. If you are sourcing by OEM number or by interchange, Reach Cooling 42-10495 replaces Western Star 529622000 directly and installs without modification.