Mopar is the automobile parts

Auto part

This is a list of auto parts, which are manufactured components of automobiles:-Body and exterior:Body components, including windows and trim:-Engine cooling system:* Air blower* Coolant hose* Cooling fan* Fan blade* Fan clutch* Radiator...

 and service

Auto mechanic

An auto mechanic is a mechanic with a variety of car makes or either in a specific area or in a specific make of car. In repairing cars, their main role is to diagnose the problem accurately and quickly...

 arm of Chrysler Group LLC. The term was first used by Chrysler in the 1920s and has been in continuous use ever since. Mopar parts are original equipment manufactured parts for Chrysler vehicles. In Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

, these were sold under the Chryco and AutoPar brands until the Mopar brand was phased into that nation's market, starting in the late 1970s.

Mopar has passed into broader usage among car enthusiasts as an unambiguous reference to the Chrysler parent company, as the Chrysler name also refers to a company marque.