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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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Silverado/Sierra
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LLY 2004.5-2005
LLY 2004.5-2005
Air Intake, LLY
Belts, Tensioners and Pulleys, LLY
Cooling System, LLY
DIY Fabrication Parts, LLY
EGR Systems, LLY
Engine, LLY
Fuel System, LLY
Heating and Air Conditioning, LLY
Intercoolers and Pipes, LLY
Interior and Trim, LLY
Transfer Case, LLY
Transmissions, LLY
Tuning and Monitors, LLY
Turbo, Exhaust and Emissions, LLY
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