License Plate CA 4EJ5309 (California) — Bill Polkinhorn Incorporated
USDOT 506308 · 1999 Wilson Trailer Co.
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 |
|---|---|---|---|
| 2025-11-25 | 4WWBGB6BXXM603581 | CA 4EJ5309 | BILL POLKINHORN INCORPORATED · USDOT 506308 |
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
Bill Polkinhorn Incorporated Active
- USDOT
- 506308
- MC
- 258822
- Status
- Active
- Type
- Motor Carrier
- Based in
- Calexico, CA
- Power units
- 12
- Drivers
- 12
- Inspections (24 mo)
- 228
- Crashes (24 mo)
- 0
- Vehicle OOS rate
- 15.8%
Carrier recorded at the latest inspection in the available records (2025-11-25). 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.What this means
License plate CA-4EJ5309 appears in FMCSA inspection records 3 times. Recorded on one vehicle: VIN 4WWBGB6BXXM603581 (1999 Wilson Trailer Co.). Most recent operating carrier: Bill Polkinhorn Incorporated (USDOT 506308). Vehicle make on file: Wilson Trailer Co. (WILX) (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-4EJ5309 (California) appears in FMCSA roadside inspection records tied to one commercial vehicle. Inspection activity under this plate runs from 2024-12-20 to 2025-11-25. The latest inspection was in California, a Level II — walk-around inspection of the driver and the vehicle.
Vehicle on this plate
This plate is associated with a single vehicle, a 1999 Wilson Trailer Co. — VIN 4WWBGB6BXXM603581 (semi-trailer).
Combined inspection & out-of-service record
Across all vehicles on this plate there are 3 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
Operated by Bill Polkinhorn Incorporated (USDOT 506308) in every inspection on record.