VIN 5DN11403XMB000172 — 2021 Western Trailer Company (WESTERN TR) Western Trailer Company
Recorded with Bos Transport Llc · USDOT 1304434
Vehicle identity
| VIN | 5DN11403XMB000172 |
| Model year | 2021 |
| Make | Western Trailer Company (WESTERN TR) |
| Model | Western Trailer Company |
| Vehicle type | SEMI-TRAILER |
| License plate | WA 14061AD (Washington) |
| Last inspected | 2026-05-13 |
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 |
|---|---|---|---|
| 2026-05-13 | 5DN11403XMB000172 | WA 14061AD | BOS TRANSPORT LLC · USDOT 1304434 |
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
Bos Transport Llc Active
- USDOT
- 1304434
- MC
- 505968
- Status
- Active
- Type
- Motor Carrier
- Based in
- Sumas, WA
- Power units
- 6
- Drivers
- 5
- Inspections (24 mo)
- 3
- Crashes (24 mo)
- 0
- Vehicle OOS rate
- 50%
Carrier recorded at the latest inspection in the available records (2026-05-13). 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
5DN11403XMB000172 is a 2021 Western Trailer Company operated by Bos Transport Llc (USDOT 1304434). License plate on its inspection records: WA 14061AD. 1 roadside inspection 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 Western Trailer Company is the vehicle NHTSA’s VIN registry returns for 5DN11403XMB000172. It is a trailer built by WESTERN TRAILER COMPANY at the BOISE, IDAHO plant. Powertrain: running on not applicable, paired with a not applicable transmission.
Roadside inspection & out-of-service record
This specific vehicle appears in 1 FMCSA roadside inspection (most recent activity 2026-05-13). Across those inspections it was never placed out of service. Its most recent inspection (2026-05-13) was in Washington, a Level I — full inspection of the driver and the vehicle. No violations were recorded against this vehicle in our inspection window.
Operator history
Operated by Bos Transport Llc (USDOT 1304434) on 2026-05-13 — 1 inspection, none out of service.
Full spec sheet (NHTSA vPIC decode)
| Make | WESTERN TRAILER COMPANY |
| Model | Western Trailer Company |
| 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 | WESTERN TRAILER COMPANY The legal manufacturer of record in NHTSA’s database. |
| Plant City | BOISE Where the chassis was assembled — useful for verifying the VIN against the build record. |
| Plant State | IDAHO |
| 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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Frequently Asked Questions
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