Equipment unit · VIN-decoded · NHTSA vPIC

2011 Dragon Products

1UNST4229BL094479 · Trailer · TRAILER
Carriers run under2
31 mo
Inspections6
all-time
OOS inspections5
of 6
First seenAug 18, 2023
TX
Last seenMar 23, 2026
TX
Inspected under 2 different carriers in 31 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
1UNST4229BL094479
Make
Dragon Products
Model
Dragon Products
Model year
2011
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 23, 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
ST422

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

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
094479

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
2011

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 18, 2023 – Mar 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 23, 2026TXII · Walk-around8OOSC4 OILFIELD SERVICES LLC 4336607NONE/TX
Nov 12, 2025TXII · Walk-around9OOSC4 OILFIELD SERVICES LLC 4336607111B236/TX
Oct 31, 2025TXII · Walk-around12OOSC4 OILFIELD SERVICES LLC 4336607111B236/TX
Aug 13, 2024TXII · Walk-around11CLAROT TRUCKING AND EQUIPMENT SERVICES LLC 3470294111B236/TX
Feb 20, 2024TXII · Walk-around14OOSCLAROT TRUCKING AND EQUIPMENT SERVICES LLC 3470294111B236/TX
Aug 18, 2023TXII · Walk-around16OOSCLAROT TRUCKING AND EQUIPMENT SERVICES LLC 3470294111B236/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
C4 OILFIELD SERVICES LLC4336607Oct 31, 2025Mar 23, 20263TX
CLAROT TRUCKING AND EQUIPMENT SERVICES LLC3470294Aug 18, 2023Aug 13, 20243TX
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.
NONETXC4 OILFIELD SERVICES LLCMar 23, 2026Mar 23, 20261
111B236TXC4 OILFIELD SERVICES LLCOct 31, 2025Nov 12, 20252
111B236TXCLAROT TRUCKING AND EQUIPMENT SERVICES LLCAug 18, 2023Aug 13, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026