Equipment unit · VIN-decoded · NHTSA vPIC

2020 Great Dane Trailers

1GR1A0622LW203621 · Trailer · TRAILER
Everest (reefer)
Carriers run under2
19 mo
Inspections7
all-time
OOS inspections0
of 7
First seenJun 5, 2024
AZ
Last seenJan 22, 2026
CA
Inspected under 2 different carriers in 19 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
1GR1A0622LW203621
Make
Great Dane Trailers
Model
Great Dane Trailers
Model year
2020
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 19, 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
2 · valid

Deterministic · position 9; calculated value 2.

Model year candidates
1990 or 2020

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

North American serial sequence
203621

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
2020

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 · Jun 5, 2024 – Jan 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 22, 2026CAIII · Driver-only3HERIAN BROTHERS TRUCKING INC 25040184VF9660/CA
Nov 12, 2025AZIII · Driver-only0HERIAN EXPRESS INC 32184054VF9660/CA
Nov 6, 2025CAII · Walk-around0HERIAN EXPRESS INC 32184054VF9660/CA
Sep 24, 2025AZIII · Driver-only0HERIAN EXPRESS INC 32184054VF9660/CA
Feb 26, 2025AZII · Walk-around4HERIAN BROTHERS TRUCKING INC 25040184VF9660/CA
Aug 19, 2024NMII · Walk-around1HERIAN BROTHERS TRUCKING INC 2504018Y830238/CA
Jun 5, 2024AZIII · Driver-only3HERIAN BROTHERS TRUCKING INC 25040184VF9660/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HERIAN BROTHERS TRUCKING INC2504018Jun 5, 2024Jan 22, 20264CA
HERIAN EXPRESS INC3218405Sep 24, 2025Nov 12, 20253CA
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.
4VF9660CAHERIAN BROTHERS TRUCKING INCJun 5, 2024Jan 22, 20263
4VF9660CAHERIAN EXPRESS INCSep 24, 2025Nov 12, 20253
Y830238CAHERIAN BROTHERS TRUCKING INCAug 19, 2024Aug 19, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026