Equipment unit · VIN-decoded · NHTSA vPIC

2021 Cimc

57VAA4023M1000438 · Trailer · TRAILER
Carriers run under3
16 mo
Inspections3
all-time
OOS inspections0
of 3
First seenApr 12, 2024
CA
Last seenAug 22, 2025
CA
Inspected under 3 different carriers in 16 months
A unit that bounces between many operators can indicate slip-seating, heavy sub-haul, or double-brokering. Review the carrier timeline below for load integrity — context for human judgment, not a verdict.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
57VAA4023M1000438
Make
Cimc
Model
CIMC
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 9, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
57V

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AA402

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1991 or 2021

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
000438

Deterministic · positions 12–17 for a North American WMI.

Sourced platform inference

The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.

Make
CIMC

Prefix basis · 14 decoded VINs at 100.0% prefix purity.

Model
CIMC

Prefix basis · 14 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
CIMC

Observed directly for this VIN via NHTSA vPIC.

Observed model
CIMC

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

Not established

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Apr 12, 2024 – Aug 22, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 22, 2025CAIII · Driver-only0FORREST TRANSPORTATION LLC 3333244158967T/TN
Jul 11, 2025AZI · Full13GRANADOS TRUCKING INC 2375368158967T/TN
Apr 12, 2024CAII · Walk-around1ENDEAVOUR TRANSPORT SERVICES INC 1901345158967T/TN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
FORREST TRANSPORTATION LLC3333244Aug 22, 2025Aug 22, 20251AZ
GRANADOS TRUCKING INC2375368Jul 11, 2025Jul 11, 20251CA
ENDEAVOUR TRANSPORT SERVICES INC1901345Apr 12, 2024Apr 12, 20241CA
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
04

Plate & unit-number history

The same truck under different plate registrations across carriers

PlateState / prov.Unit no.CarrierDate rangeInsp.
158967TTNFORREST TRANSPORTATION LLCAug 22, 2025Aug 22, 20251
158967TTNGRANADOS TRUCKING INCJul 11, 2025Jul 11, 20251
158967TTNENDEAVOUR TRANSPORT SERVICES INCApr 12, 2024Apr 12, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026