Equipment unit · VIN-decoded · NHTSA vPIC

2023 Great Dane Trailers

1GR4M0623PH502551 · Trailer · TRAILER
Freedom
Carriers run under3
34 mo
Inspections5
all-time
OOS inspections1
of 5
First seenAug 10, 2023
TX
Last seenJun 29, 2026
TX
Inspected under 3 different carriers in 34 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
1GR4M0623PH502551
Make
Great Dane Trailers
Model
Great Dane Trailers
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 4, 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
4M062

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1993 or 2023

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

North American serial sequence
502551

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 · 2,215 decoded VINs at 100.0% prefix purity.

Model
Great Dane Trailers

Prefix basis · 2,215 decoded VINs at 100.0% prefix purity.

Model line
Freedom

Sourced label · prefix basis 2,215 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
2023

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 10, 2023 – Jun 29, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 29, 2026TXII · Walk-around1AUTOLINEAS PERZA SA DE CV 33469394UR5372/CA
Oct 16, 2024TXII · Walk-around1AUTOLINEAS PERZA SA DE CV 33469394UR5372/CA
Feb 14, 2024TXI · Full1MLP XPRESS INC 39457764UR5372/CA
Jan 3, 2024PAII · Walk-around3OOSFISHER BROTHERS TRUCKING INC 10546824UR5372/CA
Aug 10, 2023TXII · Walk-around2AUTOLINEAS PERZA SA DE CV 33469394UR5372/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
AUTOLINEAS PERZA SA DE CV3346939Aug 10, 2023Jun 29, 20263CH
MLP XPRESS INC3945776Feb 14, 2024Feb 14, 20241TX
FISHER BROTHERS TRUCKING INC1054682Jan 3, 2024Jan 3, 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.
4UR5372CA2AUTOLINEAS PERZA SA DE CVAug 10, 2023Jun 29, 20263
4UR5372CAMLP XPRESS INCFeb 14, 2024Feb 14, 20241
4UR5372CAFISHER BROTHERS TRUCKING INCJan 3, 2024Jan 3, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 4, 2026