Part # : MD9014

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579 123″ BBC Underbody Exhaust Cab/Sleeper Kit

2013+ Peterbilt 579 models with 123″ BBC and underbody exhaust. For 44″ sleepers without extenders. Plain (no lights). Block heater cutout. 2.5″ wide.

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Part # : MD9009

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579 123″ BBC Underbody Exhaust Cab/Sleeper Kit

For 2013+ Peterbilt 579 models with 123″ BBC and underbody exhaust. For 44″ sleepers without extenders. X2AG2 LED lights. 2.5″ wide.

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Part # : MD9008

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579 123″ BBC Underbody Exhaust Cab/Sleeper Kit

For 2013+ Peterbilt 579 models with 123″ BBC and underbody exhaust. Use on trucks with 44″ sleepers without extenders. Plain. 2.5″ wide.

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Part # : MD9023

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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. 2 block heater holes, 2.5″ wide.

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Part # : MD9013

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

2013+ Peterbilt 579 123″ BBC models with underbody exhaust. For 44″ sleepers with extenders. X2ACG2 LED Lights (3/4). Measure 2.5″ wide.

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Part # : MD9012

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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. X2AG2 LED lights. 2.5″ wide.

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Part # : MD9011

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

For 2013+ Peterbilt 579 models with 123″ BBC and underbody exhaust. For 44″ sleepers with extenders. Plain. 2.5″ wide.

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Part # : MD9018

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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. With X2AG2 LED lights. Block heater hole, 2.5″ wide.

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Part # : MD9017

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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.

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Part # : MD9028

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80″ Sleeper Skirts With Extenders & Fuel Doors For Underbody Exhaust

For Peterbilt 579 models (including New Model/MLU 579) with underbody exhaust. Use with 80″ sleepers with extenders. Fuel doors. X2ACG2 LED lights. 2.5″ wide.

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