Wentzville Assembly


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1500 E Rte A
Wentzville, MO. 63385 United States

Year Opened:

1983-Assembly; 1997-Stamping

Facility Size:

3.7 Million square feet

Employee Information







Union Local:

UAW Local 2250

Facility Details

Facilities: Vehicle Assembly Plant & Contiguous Stamping Facility

Site History: The General Motors Truck Group Wentzville facility is located 40 miles west of St. Louis, Missouri on a 569-acre site. The facility was built in 1983 on a wheat field. The current facility employs approximately 3500 employees that work over three shifts. In addition, Wentzville has a contiguous stamping facility on site that produces the majority of the body parts that are used in the production of the Chevy Express and GMC Savana full size vans and the Chevrolet Colorado and GMC Canyon mid-size trucks. The Wentzville Assembly Center is the global production site for the Full Size Van. To date, over 2.5 million Full Size Vans have been produced at Wentzville Assembly.

GM State Economic Impact

  • State Wages: $425,081,158.98
  • Income Tax: $16,956,335.32


  • GM announced the investment of $380 million in November 2011 for the launch of the new mid-size pickup at Wentzville, with the potential to create or retain 1,260 jobs. Investment included funds for a new body shop along with other plant improvements to support the new truck launch.
  • GM also announced the investment of $133 million in June, 2013 to add a third stamping press to the Wentzville plant, with the potential to create or retain 55 jobs.
  • Both the full-size vans and the new mid-size trucks are built concurrently on the same assembly line.
  • In September of 2014, GM announced a third shift and 750 new jobs to begin in the first quarter of 2015 at Wentzville to meet anticipated demand for new pickup trucks.  
  • In late 2015 and early 2016, GM invested $82.3 million dollars at Wentzville for new materials and equipment, environmental, and facilities improvements. 

Products & Production

Current Products:
The world’s best full-size vans, the Chevrolet Express and GMC Savana. GM’s mid-size pickup trucks, the 2016 Chevrolet Colorado and GMC Canyon.

Awards & Reveals

  • Chevrolet Colorado named 2015 and 2016 Motor Trend Truck of the Year
  • GMC Canyon named Autoweek’s Best of the Best Trucks for 2015
  • 2015 Energy Star Challenge for Industry Award
  • 2015 Missouri Water Environment Association Gold Award for industrial wastewater pretreatment

Community Involvement

In 2015, GM Wentzville’s hourly and salaried employees raised more than $150,000 to support a number of community charitable organizations.

In 2015 GM Wentzville awarded $75,000 in Plant City grants from the GM Foundation to seven community organizations.

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