In 1984, LB Cummins bought Wilson Pontiac Buick GMC in Weatherford, OK, and changed the name to Cummins Pontiac Buick GMC.

Chad Cummins, LB’s son, the current owner and operator of Cummins Auto Group, began working at Cummins in 1985.

In 1994, LB and Chad Cummins purchased Zoeller Dodge and consolidated Cummins Dodge with Cummins Pontiac Buick GMC.

In 2008, LB and Chad Cummins purchased the Chevrolet franchise and renamed the business Cummins Dodge Pontiac Buick GMC Chevrolet.

In 2010, the original Cummins dealership was torn down and rebuilt.

In 2011, Chad and LB Cummins purchased York Ford and renamed the business

Cummins Ford.

In 2013, the new Ford store was built and opened as Cummins Ford Lincoln.

In 2014, Cummins Chrysler was built, which carries Chrysler, Dodge, Jeep, and Ram.

Cummins’ dealership began as one storefront, but is now three, all located in

Weatherford, OK.

In 2020, Cummins Auto Group bought Rick Jones Buick GMC, which is located in El

Reno, OK, and renamed it Dorsey-Jones Buick GMC.

Cole Dorsey, who is LB’s grandson and Chad’s nephew, manages Dorsey-Jones Buick

GMC.

Cummins Auto Group are the only car dealerships in Weatherford, OK.

Cummins Auto Group’s slogan is “Cummins Auto Group - Service to Believe in.”

LB Cummins, the original owner of Cummins, never fully retired, but stopped selling

cars in 2007. He still goes to work everyday.