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Welcome to Merchant Automotive, your Duramax and Allison specialists!
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Silverado/Sierra
LB7 2001-2004
LLY 2004.5-2005
LBZ 2006-2007
LMM 2007.5-2010
LML 2011-2016
L5P 2017-2019
Colorado/Canyon
LWN 2.8L 2016+
Express/Savana
LLY Van 2006-2007
LMM Van 2008-2010
LGH Van 2010.5-2015
LWN Van 2.8L 2016+
99-07 Gas Truck Transfer Case
261HD Transfer Case
263HD Transfer Case
NP246 Transfer Case
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Choose Your Truck
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Silverado/Sierra
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LBZ 2006-2007
LBZ 2006-2007
Air Intake, LBZ
Axle and Differential, LBZ
Belts, Tensioners and Pulleys, LBZ
Brakes and Braking Systems, LBZ
Cooling System, LBZ
Diesel Fuel Additives, LBZ
DIY Fabrication Parts, LBZ
EGR Systems, LBZ
Engine, LBZ
Exterior, LBZ
Filters, LBZ
Fuel System, LBZ
Heating and Air Conditioning, LBZ
Intercoolers and Pipes, LBZ
Interior and Trim, LBZ
Lift Pumps and Sumps, LBZ
Lighting, LBZ
Oils, Fluids and Greases, LBZ
Steering, LBZ
Suspension Systems, LBZ
Tools, LBZ
Transfer Case, LBZ
Transmissions, LBZ
Tuning and Monitors, LBZ
Turbo, Exhaust and Emissions, LBZ
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