VIN 57J64820XM3577831 — 2021 FRONTIER H
Recorded with Monarch Heavy Haul Corp · USDOT 2943108
Vehicle identity
| VIN | 57J64820XM3577831 |
| Model year | 2021 |
| Make | FRONTIER H |
| Vehicle type | SEMI-TRAILER |
| License plate | CA 4TC5506 (California) |
| Inspection window | 2025-09-17 to 2026-10-29 |
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 |
|---|---|---|---|
| 2026-10-29 | 57J64820XM3577831 | CA 4TC5506 | MONARCH HEAVY HAUL CORP · USDOT 2943108 |
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
Monarch Heavy Haul Corp Active
- USDOT
- 2943108
- MC
- 257271
- Status
- Active
- Type
- Carrier & Intermodal Equipment Provider
- Based in
- Corona, CA
- Power units
- 28
- Drivers
- 27
- Inspections (24 mo)
- 147
- Crashes (24 mo)
- 0
- Vehicle OOS rate
- 5.1%
Carrier recorded at the latest inspection in the available records (2026-10-29). 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
57J64820XM3577831 is a 2021 FRONTIER H operated by Monarch Heavy Haul Corp (USDOT 2943108). License plate on its inspection records: CA 4TC5506. 7 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 FRONTIER H is the vehicle NHTSA’s VIN registry returns for 57J64820XM3577831.
Roadside inspection & out-of-service record
This specific vehicle appears in 7 FMCSA roadside inspections between 2025-09-17 and 2026-10-29. Across those inspections it was never placed out of service. Its most recent inspection (2026-10-29) was in California, 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 Monarch Heavy Haul Corp (USDOT 2943108) from 2025-09-17 to 2026-10-29 — 7 inspections, none out of service.
Full spec sheet (NHTSA vPIC decode)
| Make | FONTAINE TRAILER CO. |
| Model Year | 2021 |
| Vehicle Type | TRAILER NHTSA’s top-level vehicle category derived from the VIN. |
| Manufacturer | FONTAINE HEAVY HAUL The legal manufacturer of record in NHTSA’s database. |
Operator & inspection history
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Frequently Asked Questions
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