Equipment unit · VIN-decoded · NHTSA vPIC

2023 Great Dane Trailers

1GR4M0622PH520488 · Trailer · TRAILER
Freedom
Carriers run under2
21 mo
Inspections5
all-time
OOS inspections3
of 5
First seenSep 24, 2024
TX
Last seenJun 25, 2026
AR
Inspected under 2 different carriers in 21 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
1GR4M0622PH520488
Make
Great Dane Trailers
Model
Great Dane Trailers
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 1, 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
2 · valid

Deterministic · position 9; calculated value 2.

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
520488

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 · Sep 24, 2024 – Jun 25, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 25, 2026ARIII · Driver-only1OOSSOUTHERN HEAVY HAUL INC 23499305227630/ME
Mar 16, 2026TXII · Walk-around3SOUTHERN HEAVY HAUL LOGISTICS INC 34792685227630/ME
Feb 4, 2026TXII · Walk-around3SOUTHERN HEAVY HAUL INC 23499305227630/ME
Oct 2, 2024TXII · Walk-around4OOSSOUTHERN HEAVY HAUL INC 23499305227630/ME
Sep 24, 2024TXIII · Driver-only4OOSSOUTHERN HEAVY HAUL INC 23499305227630/ME
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTHERN HEAVY HAUL INC2349930Sep 24, 2024Jun 25, 20264TX
SOUTHERN HEAVY HAUL LOGISTICS INC3479268Mar 16, 2026Mar 16, 20261TX
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.
5227630ME2SOUTHERN HEAVY HAUL INCSep 24, 2024Jun 25, 20264
5227630MESOUTHERN HEAVY HAUL LOGISTICS INCMar 16, 2026Mar 16, 20261
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 1, 2026