Freightliner, Sterling Truck Radiator - Freightliner CTAVTU80803, Northern Radiator SC239085, Spectra Premium 2001-1718, Reach Cooling 42-10072

When your Freightliner or Sterling Truck radiator needs replacing, the Reach Cooling 42-10072 delivers a reliable aftermarket solution engineered to match original equipment fit and performance. This radiator directly replaces Freightliner 03AH00319, the primary OEM reference, and also cross-references Northern Radiator 238724, Active Radiator Supply Company 8000-10, Spectra Premium 20011718, 1-800-Radiator 2400128, and Serck FLX000216. The aluminum core and plastic tank construction is backed by reinforced B-type tubes with central support for improved pressure tolerance, deep extrusion headers that virtually eliminate tube-to-header leaks, and thermal expansion cuts that extend service life through normal heat cycles. Folded fin edges improve structural stability and heat disbursement, while longer header tabs add resistance to tank-to-header leaks. A transmission oil cooler is included, and multi-fit attachments allow this single radiator to serve multiple vehicle configurations without sacrificing OE fitment. Compatible applications span Freightliner FL50, FL60, FL70, FL80, FLD120, FS65, Century Class, V Line, and XB Line trucks, as well as Sterling Truck Acterra 5500, Acterra 6500, Acterra 7500, and Acterra 8500 models across a broad range of engine displacements and model years. If you are sourcing by OEM number or need a cross-reference match for Freightliner 03AH00319, the Reach Cooling 42-10072 is the correct, drop-in aftermarket replacement.