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Our offices will be closed for Labor Day.
Orders placed after 3 PM EST on Friday, August 29 will ship on Tuesday, September 2.
Thank you, and enjoy your holiday weekend!

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Merchant Automotive: The foremost parts supplier, manufacturer, and service center for the Duramax and Allison platforms.

Welcome to Merchant Automotive. Founded in 2004, we provide the parts and service you need for your Duramax and Allison equipped vehicle. Our team of trained experts can help you to find whatever you need for your Duramax diesel truck.