Equipment unit · VIN-decoded · NHTSA vPIC

2012 Dragon Products

1UNST4428CS093392 · Trailer · TRAILER
Carriers run under3
15 mo
Inspections4
all-time
OOS inspections1
of 4
First seenSep 18, 2024
OK
Last seenDec 13, 2025
TX
Inspected under 3 different carriers in 15 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
1UNST4428CS093392
Make
Dragon Products
Model
Dragon Products
Model year
2012
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 8, 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
1UN

Deterministic · VIN positions 1–3.

Vehicle descriptor section
ST442

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1982 or 2012

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

North American serial sequence
093392

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
2012

Observed directly for this VIN via NHTSA vPIC.

Observed make
DRAGON PRODUCTS

Observed directly for this VIN via NHTSA vPIC.

Observed model
Dragon Products

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Sep 18, 2024 – Dec 13, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 13, 2025TXIII · Driver-only0TTM TRUCKING SERVICES LLC 4055208257B859/TX
Dec 1, 2025TXII · Walk-around3OOSTTM TRUCKING SERVICES LLC 4055208257B859/TX
Mar 11, 2025TXII · Walk-around0WOLF SERVICES LLC 2344691257B859/TX
Sep 18, 2024OKIII · Driver-only0COFFEYVILLE RESOURCES CRUDE TRANSPORTATION 12363786999JM/OK
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TTM TRUCKING SERVICES LLC4055208Dec 1, 2025Dec 13, 20252TX
WOLF SERVICES LLC2344691Mar 11, 2025Mar 11, 20251TX
COFFEYVILLE RESOURCES CRUDE TRANSPORTATION1236378Sep 18, 2024Sep 18, 20241OK
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.
257B859TXTTM TRUCKING SERVICES LLCDec 1, 2025Dec 13, 20252
257B859TXWOLF SERVICES LLCMar 11, 2025Mar 11, 20251
6999JMOKCOFFEYVILLE RESOURCES CRUDE TRANSPORTATIONSep 18, 2024Sep 18, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 8, 2026