License Plate CA 4JK4237 (California) — Glassfab Tempering Services Inc
USDOT 1689418 · UNRUH
Recorded vehicle, plate and carrier history
These are dated observations in the records available to us. They do not establish ownership, a sale, a transfer date, or continuous use between observations. The latest observation may not describe today’s vehicle or carrier.
| Observed dates | VIN | Plate | Reported carrier |
|---|---|---|---|
| 2025-11-06 | 1U9CG402371062186 | CA 4JK4237 | GLASSFAB TEMPERING SERVICES INC · USDOT 1689418 |
| 2024-12-17 | 1UPCG402371062186 | CA 4JK4237 | PENSKE TRUCK LEASING CO LP · USDOT 327574 |
Evidence: FMCSA inspection observations and retained snapshots of our vehicle records. Coverage is incomplete; an unreported change cannot be dated from these records.
Most recently recorded carrier for this plate
Glassfab Tempering Services Inc Active
- USDOT
- 1689418
- MC
- —
- Status
- Active
- Type
- Carrier & Shipper
- Based in
- Tracy, CA
- Power units
- 34
- Drivers
- 34
- Inspections (24 mo)
- 151
- Crashes (24 mo)
- 0
- Vehicle OOS rate
- 9.9%
Carrier recorded at the latest inspection in the available records (2025-11-06). This does not establish current ownership or confirm that the carrier still operates this vehicle.
View full carrier profile →Authority, insurance & bonds, safety scores, crash history, inspections and the full fleet list.This plate has also been operated by 1 other carrier (listed below).
What this means
License plate CA-4JK4237 appears in FMCSA inspection records 4 times. 2 different VINs appear under this plate in the available inspection records. The records do not establish why the association changed. Operated by 2 different carriers (DOT numbers) over its inspection history. Most recent operating carrier: Glassfab Tempering Services Inc (USDOT 1689418). Vehicle make on file: UNRUH (SEMI-TRAILER). No out-of-service violations are recorded under this plate in the available inspection records. Other violations may still be present.
About this plate
Commercial license plate CA-4JK4237 (California) appears in FMCSA roadside inspection records tied to 2 commercial vehicles. Inspection activity under this plate runs from 2024-12-17 to 2025-11-06. The latest inspection was in California, a Level I — full inspection of the driver and the vehicle.
Vehicles recorded under plate CA-4JK4237
This plate has been recorded on 2 different VINs. Vehicles on record: 1U9CG402371062186 (UNRUH, 2025-01-23 to 2025-11-06); 1UPCG402371062186 (UNRUH, 2024-12-17).
Combined inspection & out-of-service record
Across all vehicles on this plate there are 4 inspections on FMCSA record. No out-of-service violations appear in the available records under this plate. This does not mean that every inspection was free of other violations.
Operators
2 carriers have operated vehicles under this plate (most recent first): Glassfab Tempering Services Inc (USDOT 1689418) from 2025-01-23 to 2025-11-06; Penske Truck Leasing Co Lp (USDOT 327574) on 2024-12-17.