The story
Founded by Stellantis North America in 1933, in Auburn Hills.1
An internal activities council created the term and was first used by Chrysler in 1937 as a product name to put on cans of Chrysler Motor Parts Antifreeze. This new branded product became known as "MoPar antifreeze", a portmanteau of the terms "motor" and "parts".
Mopar parts are original equipment manufactured parts for Stellantis global vehicles. The term "Mopar" has passed into broader usage among car enthusiasts as an unambiguous reference to vehicles produced by former parent company Chrysler Corporation/Chrysler Group LLC/FCA US LLC, now known as Stellantis.
The term has thus become an inclusive term for any Chrysler-built vehicle — almost any Dodge, Chrysler, Plymouth, Imperial, DeSoto, Fargo (Canada-only in later years), or Dodge Trucks/Ram. By extension, it is also used for Jeep and AMC vehicles built after Chrysler's 1987 buyout of American Motors Corporation, including the short-lived Eagle brand. The brand serves as Stellantis' global name for genuine parts and accessories. Its services now extend to the full range of Stellantis brands, adding Peugeot, Opel, Vauxhall, Citroen, and DS Automobiles to its OEM parts lineup, as well as the Chinese brand Leapmotor through Stellantis' 51-49 Leapmotor International J.V.
In Canada, Chrysler parts were sold under the "Chryco" and "AutoPar" brands until the Mopar brand was introduced in the late 1970s.
From Wikipedia’s article on Mopar, shared under CC BY-SA 4.0.5