Equipment unit · VIN-decoded · NHTSA vPIC

2003 Dragon Products

1UNST32253L025171 · Trailer · TRAILER
Carriers run under2
21 mo
Inspections4
all-time
OOS inspections1
of 4
First seenSep 19, 2023
TX
Last seenJun 16, 2025
TX
Inspected under 2 different carriers in 21 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
1UNST32253L025171
Make
Dragon Products
Model
Dragon Products
Model year
2003
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
ST322

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
2003 or 2033

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

North American serial sequence
025171

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 · 3 decoded VINs at 100.0% prefix purity.

Model
Dragon Products

Prefix basis · 3 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.

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
2003

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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Sep 19, 2023 – Jun 16, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 16, 2025TXII · Walk-around6OOSPM & SON'S TRUCKING LLC 2140495101C051/TX
Sep 30, 2024TXII · Walk-around2PM & SON'S TRUCKING LLC 2140495101C051/TX
Feb 14, 2024TXII · Walk-around1PM & SON'S TRUCKING LLC 2140495101C051/TX
Sep 19, 2023TXII · Walk-around6DC VACUUM INC 2316078101C051/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PM & SON'S TRUCKING LLC2140495Feb 14, 2024Jun 16, 20253TX
DC VACUUM INC2316078Sep 19, 2023Sep 19, 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.
101C051TXPM & SON'S TRUCKING LLCFeb 14, 2024Jun 16, 20253
101C051TXDC VACUUM INCSep 19, 2023Sep 19, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 8, 2026