Mopar (often stylized as MoPar) is the auto parts and customer service division of Stellantis (formerly Fiat Chrysler Automobiles (FCA). From Motor Parts, Mopar primarily deals with OEM accessories and parts for the vehicles Stellantis brands but designs and builds a few customized models of its own.
The Chrysler Corporation first used the Mopar name to brand antifreeze cans, becoming MoPar antifreeze. While initially a Chrysler term, MoPar has become synonymous with all past and present FCA (now Stellantis) brands, including AMC, Dodge, Eagle, Jeep, Plymouth, Ram, and more.
Beyond its auto parts and accessories shop, Mopar has a little over a dozen custom shops and produces limited-edition versions of FCA/Stellantis vehicles with custom paint options and performance modifications (Ex. the Mopar 2017 Dodge Challenger featured at the Chicago Auto Show). Lastly, as an auto parts division, Mopar is a frequent sponsor of racecar drivers participating in motorsports.