Equipment unit · VIN-decoded · NHTSA vPIC

1GRDM9621FH724718

Not yet decoded
Freedom
Carriers run under2
17 mo
Inspections2
all-time
OOS inspections0
of 2
First seenDec 7, 2024
TX
Last seenMay 26, 2026
TX
Inspected under 2 different carriers in 17 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

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
DM962

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1985 or 2015

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

North American serial sequence
724718

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 · 3,507 decoded VINs at 100.0% prefix purity.

Model
Great Dane Trailers

Prefix basis · 3,507 decoded VINs at 100.0% prefix purity.

Model line
Freedom

Sourced label · prefix basis 3,507 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.

Not established

  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Dec 7, 2024 – May 26, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 26, 2026TXI · Full3GRISELDA TREJO CHAVEZ 1840404U513487/TN
Dec 7, 2024TXII · Walk-around0TENNESSEE STEEL HAULERS LLC 159317U513487/TN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GRISELDA TREJO CHAVEZ1840404May 26, 2026May 26, 20261TA
TENNESSEE STEEL HAULERS LLC159317Dec 7, 2024Dec 7, 20241TN
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.
U513487TNGRISELDA TREJO CHAVEZMay 26, 2026May 26, 20261
U513487TNTENNESSEE STEEL HAULERS LLCDec 7, 2024Dec 7, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC