Equipment unit · VIN-decoded · NHTSA vPIC

2024 Great Dane Trailers

1GR4M9623RH603189 · Trailer · TRAILER
Freedom
Carriers run under3
11 mo
Inspections4
all-time
OOS inspections1
of 4
First seenAug 17, 2025
CA
Last seenJul 8, 2026
CA
Inspected under 3 different carriers in 11 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
1GR4M9623RH603189
Make
Great Dane Trailers
Model
Great Dane Trailers
Model year
2024
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 13, 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
1GR

Deterministic · VIN positions 1–3.

Vehicle descriptor section
4M962

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1994 or 2024

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

North American serial sequence
603189

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
GREAT DANE TRAILERS

Prefix basis · 1,834 decoded VINs at 100.0% prefix purity.

Model
Great Dane Trailers

Prefix basis · 1,834 decoded VINs at 100.0% prefix purity.

Model line
Freedom

Sourced label · prefix basis 1,834 decoded VINs at 100.0% prefix purity.

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
2024

Observed directly for this VIN via NHTSA vPIC.

Observed make
GREAT DANE TRAILERS

Observed directly for this VIN via NHTSA vPIC.

Observed model
Great Dane Trailers

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

  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Aug 17, 2025 – Jul 8, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 8, 2026CAI · Full3OOSPROLEAD TRANSPORT INC 33972394WX5925/CA
May 22, 2026TXII · Walk-around2PROLEAD TRANSPORT INC 33972394WX5925/CA
Apr 15, 2026CAI · Full1STEADY ROAD TRANSPORT LLC 44489594WX5925/CA
Aug 17, 2025CAII · Walk-around0DHARMA TRANSPORT INC 41979414WX5925/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PROLEAD TRANSPORT INC3397239May 22, 2026Jul 8, 20262IL
STEADY ROAD TRANSPORT LLC4448959Apr 15, 2026Apr 15, 20261CA
DHARMA TRANSPORT INC4197941Aug 17, 2025Aug 17, 20251WA
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.
4WX5925CA2PROLEAD TRANSPORT INCMay 22, 2026Jul 8, 20262
4WX5925CASTEADY ROAD TRANSPORT LLCApr 15, 2026Apr 15, 20261
4WX5925CADHARMA TRANSPORT INCAug 17, 2025Aug 17, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 13, 2026