Equipment unit · VIN-decoded · NHTSA vPIC

2015 Dragon Products

1UNST4423FS140378 · Trailer · TRAILER
Carriers run under2
23 mo
Inspections5
all-time
OOS inspections2
of 5
First seenAug 23, 2023
OK
Last seenJul 1, 2025
TX
Inspected under 2 different carriers in 23 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
1UNST4423FS140378
Make
Dragon Products
Model
Dragon Products
Model year
2015
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 28, 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
3 · valid

Deterministic · position 9; calculated value 3.

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
140378

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
2015

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 · Aug 23, 2023 – Jul 1, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 1, 2025TXIII · Driver-only0TTM TRUCKING SERVICES LLC 4055208245C160/TX
May 22, 2025TXII · Walk-around8OOSTTM TRUCKING SERVICES LLC 4055208245C160/TX
Sep 18, 2024TXII · Walk-around0TTM TRUCKING SERVICES LLC 4055208245C160/TX
Aug 14, 2024TXII · Walk-around8OOSTTM TRUCKING SERVICES LLC 4055208245C160/TX
Aug 23, 2023OKII · Walk-around0GULFMARK ENERGY INC 229659BD1030/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TTM TRUCKING SERVICES LLC4055208Aug 14, 2024Jul 1, 20254TX
GULFMARK ENERGY INC229659Aug 23, 2023Aug 23, 20231TX
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.
245C160TXTTM TRUCKING SERVICES LLCAug 14, 2024Jul 1, 20254
BD1030OKGULFMARK ENERGY INCAug 23, 2023Aug 23, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026