Equipment unit · VIN-decoded · NHTSA vPIC

2003 Great Dane Trailers

1GRAA56133S039954 · Trailer · TRAILER
Everest (reefer)
Carriers run under3
14 mo
Inspections3
all-time
OOS inspections0
of 3
First seenNov 29, 2024
CA
Last seenJan 22, 2026
CA
Inspected under 3 different carriers in 14 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
1GRAA56133S039954
Make
Great Dane Trailers
Model
Great Dane Trailers
Model year
2003
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 20, 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
AA561

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
2003 or 2033

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

North American serial sequence
039954

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 · 462 decoded VINs at 100.0% prefix purity.

Model
Great Dane Trailers

Prefix basis · 462 decoded VINs at 100.0% prefix purity.

Model line
Everest (reefer)

Sourced label · prefix basis 462 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
2003

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 · Nov 29, 2024 – Jan 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 22, 2026CAIII · Driver-only0HARMINDER PAL SINGH 24249274SU6091/CA
May 21, 2025CAI · Full1DIESEL MIKE 4X4 39869724SU6091/CA
Nov 29, 2024CAIII · Driver-only0SURINDER SINGH 17782184SU6091/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HARMINDER PAL SINGH2424927Jan 22, 2026Jan 22, 20261CA
DIESEL MIKE 4X43986972May 21, 2025May 21, 20251CA
SURINDER SINGH1778218Nov 29, 2024Nov 29, 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.
4SU6091CAHARMINDER PAL SINGHJan 22, 2026Jan 22, 20261
4SU6091CADIESEL MIKE 4X4May 21, 2025May 21, 20251
4SU6091CASURINDER SINGHNov 29, 2024Nov 29, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 20, 2026