VIN 1S9SS4231ML476383 — 2021 Smithco Manufacturing (vPIC; filed make: UNKNOWN) SMITHCO MANUFACTURING
Recorded with K O Transportation Inc · USDOT 2154496
Vehicle identity
| VIN | 1S9SS4231ML476383 |
| Model year | 2021 |
| Make | Smithco Manufacturing (vPIC; filed make: UNKNOWN) |
| Model | SMITHCO MANUFACTURING |
| Vehicle type | SEMI-TRAILER |
| License plate | ID TS4898 (Idaho) |
| Last inspected | 2026-07-17 |
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 |
|---|---|---|---|
| 2026-07-17 | 1S9SS4231ML476383 | ID TS4898 | K O TRANSPORTATION INC · USDOT 2154496 |
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
K O Transportation Inc Active
- USDOT
- 2154496
- MC
- 748999
- Status
- Active
- Type
- Motor Carrier
- Based in
- Spanish Fork, UT
- Power units
- 14
- Drivers
- 14
- Inspections (24 mo)
- 2
- Crashes (24 mo)
- 0
- Vehicle OOS rate
- 50%
Carrier recorded at the latest inspection in the available records (2026-07-17). 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
1S9SS4231ML476383 is a 2021 Smithco Manufacturing operated by K O Transportation Inc (USDOT 2154496). License plate on its inspection records: ID TS4898. 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 Smithco Manufacturing is the vehicle NHTSA’s VIN registry returns for 1S9SS4231ML476383. It is a trailer built by SMITHCO MANUFACTURING at the LE MARS, IOWA plant.
Roadside inspection & out-of-service record
This specific vehicle appears in 1 FMCSA roadside inspection (most recent activity 2026-07-17). Across those inspections it was never placed out of service. Its most recent inspection (2026-07-17) was in Utah, 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 K O Transportation Inc (USDOT 2154496) on 2026-07-17 — 1 inspection, none out of service.
Full spec sheet (NHTSA vPIC decode)
| Make | SMITHCO MANUFACTURING |
| Model | SMITHCO MANUFACTURING |
| 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 | SMITHCO MANUFACTURING The legal manufacturer of record in NHTSA’s database. |
| Plant City | LE MARS 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
Related vehicles
- 1XKWD49X2PR231899 Kenworth (1 insp · 1 OOS)
- 1XKWD40X5SR132760 Kenworth (1 insp · 1 OOS)
- 1S9SS4238JL476473 UNKNOWN (1 insp)
Related
Frequently Asked Questions
What does VIN 1S9SS4231ML476383 decode to?
Does VIN 1S9SS4231ML476383 have a clean inspection record?
What license plate is on VIN 1S9SS4231ML476383?
Vetting a used truck purchase?
Tell us what you're looking for and we'll send matching new or used trucks — no obligation.