VIN 4U3J05339ML020247 — 2021 XLSP X-L SPECIALIZED TRAILERS INC
Recorded with King Bros Inc · USDOT 1439452
Vehicle identity
| VIN | 4U3J05339ML020247 |
| Model year | 2021 |
| Make | XLSP |
| Model | X-L SPECIALIZED TRAILERS INC |
| Vehicle type | SEMI-TRAILER |
| License plate | UT Z523114 (Utah) |
| Inspection window | 2024-10-07 to 2025-06-16 |
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 |
|---|---|---|---|
| 2025-06-16 | 4U3J05339ML020247 | UT Z523114 | 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 vehicle
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)
- 72
- Crashes (24 mo)
- 1
- Vehicle OOS rate
- 25%
Carrier recorded at the latest inspection in the available records (2025-06-16). 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
4U3J05339ML020247 is a 2021 XLSP X-L SPECIALIZED TRAILERS INC operated by King Bros Inc (USDOT 1439452). License plate on its inspection records: UT Z523114. 4 roadside inspections on FMCSA record. No out-of-service violations are recorded for this VIN in the available inspection records. Other violations may still be present.
What this VIN is
2021 XLSP X-L SPECIALIZED TRAILERS INC is the vehicle NHTSA’s VIN registry returns for 4U3J05339ML020247. It is a trailer built by BULL MOOSE HEAVY HAUL, INC at the MANCHESTER, IOWA plant. Powertrain: running on not applicable, paired with a not applicable transmission.
Roadside inspection & out-of-service record
This specific vehicle appears in 4 FMCSA roadside inspections between 2024-10-07 and 2025-06-16. Across those inspections it was never placed out of service. Its most recent inspection (2025-06-16) was in Nebraska, a Level III — driver and paperwork only. No violations were recorded against this vehicle in our inspection window.
Operator history
Operated by King Bros Inc (USDOT 1439452) from 2024-10-07 to 2025-06-16 — 4 inspections, none out of service.
Full spec sheet (NHTSA vPIC decode)
| Make | X-L SPECIALIZED TRAILERS INC |
| Model | X-L SPECIALIZED TRAILERS INC |
| Model Year | 2021 |
| Vehicle Type | TRAILER NHTSA’s top-level vehicle category derived from the VIN. |
| Body Class | Trailer The body style NHTSA assigns from the VIN — e.g. truck-tractor, straight truck, or cutaway. |
| Manufacturer | BULL MOOSE HEAVY HAUL, INC The legal manufacturer of record in NHTSA’s database. |
| Plant City | MANCHESTER Where the chassis was assembled — useful for verifying the VIN against the build record. |
| Plant State | IOWA |
| Plant Country | UNITED STATES (USA) |
| Axles | 3 Number of axles — ties directly to weight limits and toll/registration class. |
Operator & inspection history
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