Equipment unit · VIN-decoded · NHTSA vPIC

2023 Great Dane Trailers

1GR1A0621PW443524 · Trailer · TRAILER
Everest (reefer)
Carriers run under3
16 mo
Inspections6
all-time
OOS inspections0
of 6
First seenSep 2, 2024
AR
Last seenJan 31, 2026
AZ
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
1GR1A0621PW443524
Make
Great Dane Trailers
Model
Great Dane Trailers
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 21, 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
1A062

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
443524

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 · 13,972 decoded VINs at 100.0% prefix purity.

Model
Great Dane Trailers

Prefix basis · 13,972 decoded VINs at 100.0% prefix purity.

Model line
Everest (reefer)

Sourced label · prefix basis 13,972 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 2, 2024 – Jan 31, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 31, 2026AZII · Walk-around4STANFORD TRANSPORTATION INC 27796244VA6671/CA
Apr 29, 2025CAI · Full1STANFORD TRANSPORTATION INC 27796244VA6671/CA
Apr 22, 2025GAIII · Driver-only2STANDFIELD TRUCKING INC 23996044VA6671/CA
Mar 31, 2025MOIII · Driver-only0GAK STANFORD TRANSLINE INC 41778244VA6671/CA
Sep 12, 2024TNIII · Driver-only0GAK STANFORD TRANSLINE INC 41778244VA6671/CA
Sep 2, 2024ARIII · Driver-only1STANFORD TRANSPORTATION INC 27796244VA6671/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
STANFORD TRANSPORTATION INC2779624Sep 2, 2024Jan 31, 20263TN
STANDFIELD TRUCKING INC2399604Apr 22, 2025Apr 22, 20251CA
GAK STANFORD TRANSLINE INC4177824Sep 12, 2024Mar 31, 20252IN
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.
4VA6671CASTANFORD TRANSPORTATION INCSep 2, 2024Jan 31, 20263
4VA6671CASTANDFIELD TRUCKING INCApr 22, 2025Apr 22, 20251
4VA6671CAGAK STANFORD TRANSLINE INCSep 12, 2024Mar 31, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026