Equipment unit · VIN-decoded · NHTSA vPIC

1D9ST4221BV661156

Not yet decoded
Carriers run under1
5 mo
Inspections2
all-time
OOS inspections0
of 2
First seenMay 2, 2025
TX
Last seenOct 14, 2025
TX
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
1D9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
ST422

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1981 or 2011

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

North American serial sequence
661156

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
DRAGON PRODUCTS

Prefix basis · 31 decoded VINs at 100.0% prefix purity.

Model
Dragon Products

Prefix basis · 31 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · May 2, 2025 – Oct 14, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 14, 2025TXII · Walk-around331 QUAD-C LLC 3106642101C785/TX
May 2, 2025TXII · Walk-around031 QUAD-C LLC 3106642053C688/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
31 QUAD-C LLC3106642May 2, 2025Oct 14, 20252TX
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.
101C785TX31 QUAD-C LLCOct 14, 2025Oct 14, 20251
053C688TX31 QUAD-C LLCMay 2, 2025May 2, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC