Freightliner, Sterling Truck Radiator - Freightliner 3100-09ST, Northern Radiator SCSI239170, Active Radiator Supply Company 310009PT, Reach Cooling 42-10441

When your Freightliner or Sterling Truck is running hot, the Reach Cooling 42-10441 aftermarket radiator is the direct replacement you need. This unit crosses to Freightliner 0437400S, Northern Radiator 239170, Active Radiator Supply Company 310009, 1-800-Radiator 2400016, Serck FLA001005, and NAPA NR4210441, covering the full range of popular interchange references mechanics and fleet buyers search by. The aluminum-core, plastic-tank, down-flow design meets or exceeds original equipment specifications, so it installs and performs exactly as the factory radiator did. Fitment spans a broad lineup of Freightliner models including the FL60, FL70, FL80, FLD120, FS65, XB Line, and XC Straight Rail, along with Sterling Truck Acterra, Acterra 5500, Acterra 6500, Acterra 7500, and Acterra 8500, covering multiple engine displacements and model years from the late 1990s through the mid-2000s. Reach Cooling builds B-type tubes with central reinforcement for greater pressure tolerance, deep-extrusion headers for a stronger tube-to-header joint that resists vibration and thermal cycling, and folded fin edges for added stability and heat disbursement. If you are sourcing by Freightliner 0437400S or any of its recognized interchanges, the 42-10441 is the correct aftermarket replacement that fits right and cools right the first time.