Hino Radiator - Hino 590029ST, Active Radiator Supply Company 5900-29, 1-800-Radiator 2401213, Reach Cooling 42-11004

Keep your Hino medium-duty truck running cool with the Reach Cooling 42-11004 aftermarket radiator, a precision-engineered direct replacement for Hino 590029ST and OEM part 16400E0E31. This down-flow aluminum core radiator also cross-references Active Radiator Supply Company 590029PT, 1-800-Radiator 2401213, Superior Cooling Systems SC-238844, and LT9407, making it one of the most widely interchangeable options in the market. It fits Hino 238, 258, 258ALP, 258LP, 268, 268A, 338, and 338CT trucks equipped with the 7.7L engine across model years 2011 to 2020. The core features B-type tubes with central reinforcement for greater pressure tolerance, deep extrusion headers that virtually eliminate tube-to-header leaks, and thermal expansion cuts that allow the core to breathe through normal heat cycles for extended service life. Folded fin edges add stability and improve heat disbursement, while longer header tabs boost pressure resistance and guard against tank-to-header leaks. A transmission oil cooler is integrated into the unit, with 375 mm between fittings. The 55 mm inlet sits at the top right and the 55 mm outlet at the bottom left. Multi-fit attachments are included for broader vehicle coverage. Radiator cap and frame are not included. If you are sourcing by Hino 590029ST or any of its interchanges, the 42-11004 delivers a correct, confident fit.