License Plate UT Z503997 (Utah) — King Bros Inc
USDOT 1439452 · 2022 UNPUBLISHE X-L SPECIALIZED TRAILERS INC
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 |
|---|---|---|---|
| 2026-10-09 | 4U3J05335NL020800 | UT Z503997 | KING BROS INC · USDOT 1439452 |
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
King Bros Inc Active
- USDOT
- 1439452
- MC
- 554723
- Status
- Active
- Type
- Motor Carrier
- Based in
- Riverside, IA
- Power units
- 12
- Drivers
- 13
- Inspections (24 mo)
- 73
- Crashes (24 mo)
- 1
- Vehicle OOS rate
- 27.3%
Carrier recorded at the latest inspection in the available records (2026-10-09). 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 UT-Z503997 appears in FMCSA inspection records 3 times. Recorded on one vehicle: VIN 4U3J05335NL020800 (2022 UNPUBLISHE X-L SPECIALIZED TRAILERS INC). Most recent operating carrier: King Bros Inc (USDOT 1439452). Vehicle make on file: UNPUBLISHE (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 UT-Z503997 (Utah) appears in FMCSA roadside inspection records tied to one commercial vehicle. Inspection activity under this plate runs from 2025-01-23 to 2026-10-09. The latest inspection was in Minnesota, a Level III — driver and paperwork only. That is outside the plate's issuing jurisdiction (Utah).
Vehicle on this plate
This plate is associated with a single vehicle, a 2022 UNPUBLISHE X-L SPECIALIZED TRAILERS INC — VIN 4U3J05335NL020800 (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 King Bros Inc (USDOT 1439452) in every inspection on record.