WELDED ALUMINUM UPGRADE – Built with a rigid welded aluminum body instead of a conventional molded plastic reservoir. This Peterbilt aluminum coolant reservoir is designed for under-hood heat, engine vibration and demanding heavy-duty truck operating conditions.
603-5403 DIRECT REPLACEMENT – This 603-5403 coolant reservoir replaces T1673008 and N5346001. Designed with factory-style mounting locations, hose connections and cap configuration for straightforward replacement of the original coolant reservoir tank.
FOR KENWORTH TRUCKS – Compatible with selected Kenworth W900, T800, T660 and T600 applications. Ideal as a Kenworth W900 coolant reservoir, Kenworth T800 coolant reservoir, Kenworth T660 coolant reservoir, W900 coolant tank or replacement Kenworth coolant reservoir.
FOR PETERBILT TRUCKS – Compatible with selected Peterbilt 389, 388, 386, 385, 384, 382, 377, 367, 365 and 348 applications. Suitable as a Peterbilt 389 coolant reservoir, Peterbilt 348 coolant reservoir, Peterbilt 384 coolant tank or 382 coolant tank when the OE configuration matches.
TANK WITH CAP – VERIFY FITMENT – Package includes 1 welded aluminum coolant reservoir tank with cap. Before ordering, compare OE numbers 603-5403, T1673008 or N5346001 and verify the mounting points, hose ports, cap configuration and original reservoir design on your truck.
