Equipment unit · VIN-decoded · NHTSA vPIC

2012 Dragon Products

1UNST4223CL086721 · Trailer · TRAILER
Carriers run under1
24 mo
Inspections9
all-time
OOS inspections2
of 9
First seenNov 14, 2023
TX
Last seenNov 21, 2025
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1UNST4223CL086721
Make
Dragon Products
Model
Dragon Products
Model year
2012
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 16, 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
3 · valid

Deterministic · position 9; calculated value 3.

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
086721

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 · Nov 14, 2023 – Nov 21, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 21, 2025TXII · Walk-around1DIAMOND 4M OILFIELD AND ENVIRONMENTAL LLC 3202815152B794/TX
Aug 31, 2025TXII · Walk-around3DIAMOND 4M OILFIELD AND ENVIRONMENTAL LLC 3202815152B794/TX
Oct 24, 2024TXII · Walk-around3OOSDIAMOND 4M OILFIELD AND ENVIRONMENTAL LLC 3202815222B059/TX
Oct 1, 2024TXII · Walk-around0DIAMOND 4M OILFIELD AND ENVIRONMENTAL LLC 3202815222B059/TX
Jul 25, 2024TXII · Walk-around1DIAMOND 4M OILFIELD AND ENVIRONMENTAL LLC 3202815222B059/TX
Jun 16, 2024TXII · Walk-around1DIAMOND 4M OILFIELD AND ENVIRONMENTAL LLC 3202815222B059/TX
May 27, 2024TXII · Walk-around1DIAMOND 4M OILFIELD AND ENVIRONMENTAL LLC 3202815222B059/TX
Dec 4, 2023TXII · Walk-around1DIAMOND 4M OILFIELD AND ENVIRONMENTAL LLC 3202815222B059/TX
Nov 14, 2023TXII · Walk-around4OOSDIAMOND 4M OILFIELD AND ENVIRONMENTAL LLC 3202815222B059/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DIAMOND 4M OILFIELD AND ENVIRONMENTAL LLC3202815Nov 14, 2023Nov 21, 20259TX
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.
152B794TXDIAMOND 4M OILFIELD AND ENVIRONMENTAL LLCAug 31, 2025Nov 21, 20252
222B059TXDIAMOND 4M OILFIELD AND ENVIRONMENTAL LLCNov 14, 2023Oct 24, 20247
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026