[Part Number] No.F50-6308. [Fitment] for Peterbilt 320 335 337 340 348 365 367 384 386 387 388 389 567 579 587 2008-2022, for Kenworth C500 T170 T270 T370 T660 T680 T700 T800 W900 W990 2008-2022. [Pros] Easy to install, manufactured according to the precise dimensions, fully adapted.. [Function] The radiator contained upper and lower hose which is the widest hose used in the system. Through the lower, the coolant is transferred to the engine and follows the upper hose back to the radiator for cooling..
