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 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.  

Products & Production

Current Products:
The world’s best full-size vans, the Chevrolet Express and GMC Savana. GM’s next generation mid-size pickup trucks, the 2015 Chevrolet Colorado and GMC Canyon.

Awards & Reveals

  • New 2015 Chevrolet Colorado revealed at Los Angeles Auto Show in November 2013.
  • New 2015 GMC Canyon revealed at North American International Auto Show in Detroit January 2014.
  • Chevrolet Colorado named 2015 Motor Trend Truck of the Year
  • GMC Canyon named Autoweek’s Best of the Best Trucks for 2015
  • 2007 & 2008 State of Missouri Gold Award-Water Conservation
  • 2003-2008-Harbour Report-Most Productive Full Size Van Facility

Community Involvement

In 2014, GM Wentzville’s hourly and salaried employees raised more than $100,000 to support a number of community organizations, including the March of Dimes, Habitat for Humanity and Missouri Special Olympics. 

In 2014 GM Wentzville awarded $75,000 in Plant City grants from the GM Foundation to seven community organizations. 

Economic Impact:

  • 2014 Wages: $224 Million
  • 2014 Payroll Taxes: $44 Million

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