DOT plant code 1M4
Gcr Retread Shop, Fontana, CA, United States. NHTSA's record names the company on this plant code. It does not list brands, and the status field is not a finding that the plant is operating.
Data-quality note
The name is the company on NHTSA's plant-code record. The record does not list tire brands, and this site does not claim a plant makes a given brand. The status field is the value vPIC stored. Active is not a finding that the company or the plant is operating. Data last verified October 21, 2026 (UTC). Data-quality notes.
- Current plant code
- 1M4
- Former code
- M4
- Plant name
- Gcr Retread Shop
- Address
- 14521 Hawthorne
- City and region
- Fontana, CA, 92335
- Country
- United States
- Status field
- Active. This is the value stored in vPIC, not a finding that the company or plant is operating today.
Tires molded with the older two-symbol code M4 point at this same plant record .
Decode a code that starts with 1M4 · How to read a DOT code · All plant codes