Equipment unit · VIN-decoded · NHTSA vPIC

1989 Great Dane Trailers

1GRAA0827KW161555 · Trailer · TRAILER
Everest (reefer)
Carriers run under1
26 mo
Inspections3
all-time
OOS inspections1
of 3
First seenDec 22, 2023
MN
Last seenFeb 24, 2026
DE
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1GRAA0827KW161555
Make
Great Dane Trailers
Model
Great Dane Trailers
Model year
1989
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
AA082

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1989 or 2019

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

North American serial sequence
161555

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 · 21 decoded VINs at 100.0% prefix purity.

Model
Great Dane Trailers

Prefix basis · 21 decoded VINs at 100.0% prefix purity.

Model line
Everest (reefer)

Sourced label · prefix basis 21 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
1989

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 · Dec 22, 2023 – Feb 24, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 24, 2026DEIII · Driver-only1DENNIS DIEFENDERFER RODNEY DIEFENDERFER AND JOSEPH DIEFENDERFER 853580PT469G2/PA
Sep 21, 2024ILII · Walk-around5OOSDENNIS DIEFENDERFER RODNEY DIEFENDERFER AND JOSEPH DIEFENDERFER 853580PT469G2/PA
Dec 22, 2023MNIII · Driver-only3DENNIS DIEFENDERFER RODNEY DIEFENDERFER AND JOSEPH DIEFENDERFER 853580PT469G2/PA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DENNIS DIEFENDERFER RODNEY DIEFENDERFER AND JOSEPH DIEFENDERFER853580Dec 22, 2023Feb 24, 20263PA
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.
PT469G2PADENNIS DIEFENDERFER RODNEY DIEFENDERFER AND JOSEPH DIEFENDERFERDec 22, 2023Feb 24, 20263
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 20, 2026