Part # : MD6013

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579 123″ BBC Underbody Exhaust Cab/Sleeper/Extender Kit

For 2013+ underbody exhaust Peterbilt 579 long hood (123″ BBC) and 567 set-back axle long hood (121″ BBC) models. Cab and 80″ sleepers with extenders. X2ACG2 LED lights. 2.5″ wide. 2 block heater cutouts.

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