Peterbilt, Kenworth Intercooler - Peterbilt 374120A, Northern Radiator 222101, Spectra Premium 4401-3809, Reach Cooling 61-1024

The Reach Cooling 61-1024 is an aftermarket charge air cooler built as a direct replacement for a wide range of Peterbilt and Kenworth conventional trucks. It replaces Peterbilt 10510906 and cross-references Northern Radiator 222101, Active Radiator Supply Company PET17703, Spectra Premium 44013809, 1-800-Radiator 2310137, and Serck FLX010503. This intercooler fits Peterbilt 320, 330, 335, 357, 359, 375, 376, 377, 378, 379, 385, 386, and 387, as well as Kenworth T400, T800, and W900, spanning model years 1982 through 2008. Constructed from aluminum with a harmonic tube design, the core measures 848 mm tall by 766 mm long and 50 mm thick, with a single core row and 4-inch inlet and outlet diameters. Reach Cooling reinforces the header with aluminum bronze for added strength, uses a wider angle header plate bond to resist cracking, and specifies a minimum flat tube wall thickness of 0.55 mm to handle boost pressure under hard use. Deep extrusion header joints resist the vibration and thermal expansion that shorten the life of lesser coolers. If you are sourcing a replacement for Peterbilt 10510906 or any of its listed interchanges, this charge air cooler delivers a correct, drop-in fit for your Peterbilt or Kenworth truck.