VIN 1UNST4226PS199381 — 2023 Dragon Esp Dragon ESP
Recorded with Knife River Corporation - South · USDOT 816566
Vehicle identity
| VIN | 1UNST4226PS199381 |
| Model year | 2023 |
| Make | Dragon Esp |
| Model | Dragon ESP |
| Vehicle type | SEMI-TRAILER |
| License plates | TX 256C135 (Texas) TX 218C178 (Texas) |
| Inspection window | 2025-02-27 to 2026-09-02 |
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 |
|---|---|---|---|
| 2026-09-02 | 1UNST4226PS199381 | TX 256C135 | KNIFE RIVER CORPORATION - SOUTH · USDOT 816566 |
| 2025-02-27 | 1UNST4226PS199381 | TX 218C178 | R CONSTRUCTION COMPANY · USDOT 1797639 |
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
Knife River Corporation - South Active
- USDOT
- 816566
- MC
- 422087
- Status
- Active
- Type
- Carrier & Shipper
- Based in
- Bryan, TX
- Power units
- 244
- Drivers
- 172
- Inspections (24 mo)
- 48
- Crashes (24 mo)
- 12
- Vehicle OOS rate
- 10.9%
Carrier recorded at the latest inspection in the available records (2026-09-02). 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 vehicle has also been operated by 1 other carrier (listed below).
What this means
1UNST4226PS199381 is a 2023 Dragon Esp operated by Knife River Corporation - South (USDOT 816566). License plates on its inspection records: TX 256C135, TX 218C178. 2 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
2023 Dragon Esp is the vehicle NHTSA’s VIN registry returns for 1UNST4226PS199381. It is a trailer built by DRAGON PRODUCTS, LLC at the SILSBEE, TEXAS plant.
Roadside inspection & out-of-service record
This specific vehicle appears in 2 FMCSA roadside inspections between 2025-02-27 and 2026-09-02. Across those inspections it was never placed out of service. Its most recent inspection (2026-09-02) was in Texas, a Level II — walk-around inspection of the driver and the vehicle. No violations were recorded against this vehicle in our inspection window.
Operator history
This VIN appears under 2 different carriers in our records, oldest first: R Construction Company (USDOT 1797639) on 2025-02-27 — 1 inspection, none out of service; Knife River Corporation - South (USDOT 816566) on 2026-09-02 — 1 inspection, none out of service.
Full spec sheet (NHTSA vPIC decode)
| Make | DRAGON ESP |
| Model | Dragon ESP |
| Model Year | 2023 |
| 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 | DRAGON PRODUCTS, LLC The legal manufacturer of record in NHTSA’s database. |
| Plant City | SILSBEE Where the chassis was assembled — useful for verifying the VIN against the build record. |
| Plant State | TEXAS |
| Plant Country | UNITED STATES (USA) |
| Axles | 2 Number of axles — ties directly to weight limits and toll/registration class. |
Operator history — 2 carriers operated this VIN
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Frequently Asked Questions
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