GMPT Willow Run

General Motors Powertrain

2625 Tyler Rd.
Ypsilanti, MI 48198, USA
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Additional Information

General Information

General Motors - Cisco 57001
Latitude / Longitude
Latitude = 42.232204
Longitude = -83.556835

Latest Company News

Other Information

This company is affiliated with...
UAW Local 735
Employees - Hourly
477
Employees - Salary
50
Products
  • Transmission - 4T80E – Hydra-matic 4 speed automatic front-wheel-drive transmission
  • Components - 4T65E & 4T45E
2009 CY Volume
479,837 units (Willow Run and YTO combined)
Customers
  • 4T80E (Detroit – Hamtramck Assembly)
  • 4T65E (Warren Transmission), 4T45E (Windsor Transmission)
Year Opened
Willow Run Plant: the building opened in 1942; GM moved in 1953 (at this location; 1939 at original location)
Property Taxes
$5.4 million (CY 2009)
Plant Size
5 Million sq. ft.
Description

The General Motors Powertrain Willow Run Site is the proud producer of the 4T80E model of the world-renowned Hydra-Matic transmission and several components for 2 other plants making transmissions for GM’s great vehicles. The total square footage of the facility is the equivalent of 110 football fields!

Located between I-94 and U.S. 12 in Ypsilanti, the Willow Run Site has major historical significance. During World War II, B-24 liberator bombers were manufactured and assembled at the facility. More than 8,685 bombers were produced at Willow Run. In 1980, then Governor William Milliken dedicated the site as an historical site for the role the employees played in World War II.

General Motors Corporation purchased the facility in 1953 when its new Detroit Transmission facility burned completely on August 12, 1953. Twelve weeks later, transmissions were being built at the Ypsilanti location! Detroit Transmissions became Hydra-Matic in 1963 and Powertrain in 1990 when GM’s engine, transmission and casting groups combined to form GM Powertrain.


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