VIN 558MSB449PB007335 — 2023 MILCO TANK MAC
Recorded with Byrnes Oil Company Inc · USDOT 278991
Vehicle identity
| VIN | 558MSB449PB007335 |
| Model year | 2023 |
| Make | MILCO TANK |
| Model | MAC |
| Vehicle type | SEMI-TRAILER |
| License plate | OR HV58479 (Oregon) |
| Inspection window | 2025-11-03 to 2026-03-16 |
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 |
|---|---|---|---|
| 2026-03-16 | 558MSB449PB007335 | OR HV58479 | BYRNES OIL COMPANY INC · USDOT 278991 |
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
Byrnes Oil Company Inc Active
- USDOT
- 278991
- MC
- 420160
- Status
- Active
- Type
- Carrier & Shipper & Cargo Tank Facility
- Based in
- Pendleton, OR
- Power units
- 92
- Drivers
- 56
- Inspections (24 mo)
- 33
- Crashes (24 mo)
- 1
- Vehicle OOS rate
- 26.7%
Carrier recorded at the latest inspection in the available records (2026-03-16). 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
558MSB449PB007335 is a 2023 MILCO TANK MAC operated by Byrnes Oil Company Inc (USDOT 278991). License plate on its inspection records: OR HV58479. 3 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 MILCO TANK MAC is the vehicle NHTSA’s VIN registry returns for 558MSB449PB007335. It is a trailer built by MAC LTT, INC. at the BILLINGS, MONTANA plant. Its gross vehicle weight rating (Class 8: 33,001 lb and above (14,969 kg and above)) places it in Class 8 heavy-duty (33,001 lb GVWR and above) — the line-haul tractor / heavy straight-truck tier.
Roadside inspection & out-of-service record
This specific vehicle appears in 3 FMCSA roadside inspections between 2025-11-03 and 2026-03-16. Across those inspections it was never placed out of service. Its most recent inspection (2026-03-16) was in Washington, 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
Operated by Byrnes Oil Company Inc (USDOT 278991) from 2025-11-03 to 2026-03-16 — 3 inspections, none out of service.
Full spec sheet (NHTSA vPIC decode)
| Make | MAC |
| Model | MAC |
| 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. |
| G V W R | Class 8: 33,001 lb and above (14,969 kg and above) Class 8 heavy-duty (33,001 lb GVWR and above) — the line-haul tractor / heavy straight-truck tier |
| Manufacturer | MAC LTT, INC. The legal manufacturer of record in NHTSA’s database. |
| Plant City | BILLINGS Where the chassis was assembled — useful for verifying the VIN against the build record. |
| Plant State | MONTANA |
| Plant Country | UNITED STATES (USA) |
| Axles | 4 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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