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MI-035 · Tier 1 · Opportunity B

GM Romulus Propulsion Systems

Romulus plant, Romulus, Michigan. 10-speed automatic transmissions for full-size trucks and SUVs.

BTier 1MachiningExpanding

Address

36880 Ecorse Rd, Romulus, MI 48174

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Parent
General Motors
Industry
Transmission manufacturing
People
No figure
Status
Expanding - $300M transmissions
Source
prod.crainsdetroit.com ↗
Verified
2026-10-11

How tools get used here

Precision machining: cutting tools, inserts, gauging and workholding, plus maintenance on CNC machines and heat treat.

Buying signals

~$300M to add 10-speed transmission output (Nov 2025). Gear machining and assembly.

Who buys tools here

Usually the maintenance manager, plant manager, MRO or indirect purchasing, and the tool crib lead.

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Plants nearby

Straight-line distance between ZIP code areas, so treat it as approximate.

All plants within 50 miMap them

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