Part # : MD9015

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579 123″ BBC Underbody Exhaust Cab/Sleeper Kit

For 2013+ Peterbilt 579 models with 123″ BBC and underbody exhaust. Use with 44″ sleepers without extenders. X2AG2 LED lights (3/2). Skirts measure 2.5″ wide. Block heater cutout.

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