579 123″ BBC Underbody Exhaust Cab/Sleeper/Extender Kit
For 2013+ Peterbilt 579 models with 123″ BBC and underbody exhaust. Use with 44″ sleepers with extenders. Plain. Block heater cutout, 2.5″ wide.
This cab, sleeper and extender kit is designed for Peterbilt 579 models with 123″ BBC and underbody exhaust. For use with 44″ sleepers with extenders. Sold in pairs, each of the skirts are plain (no lights). The driver side cab skirt has a block heater cutout. Skirts measure 2.5″ wide. Hardware included.