Equipment unit · VIN-decoded · NHTSA vPIC

2011 Dragon Products

1D9SH3423BC661745 · Trailer · TRAILER
Carriers run under2
19 mo
Inspections3
all-time
OOS inspections3
of 3
First seenApr 5, 2024
TX
Last seenNov 28, 2025
TX
Inspected under 2 different carriers in 19 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
1D9SH3423BC661745
Make
Dragon Products
Model
Dragon Products
Model year
2011
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 19, 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
1D9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
SH342

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

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
661745

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 · 15 decoded VINs at 100.0% prefix purity.

Model
Dragon Products

Prefix basis · 15 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
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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Apr 5, 2024 – Nov 28, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 28, 2025TXII · Walk-around1OOSTAS ENVIRONMENTAL SERVICES LP 1290854207C492/TX
Sep 5, 2025TXII · Walk-around1OOSTAS ENVIRONMENTAL SERVICES LP 1290854207C492/TX
Apr 5, 2024TXII · Walk-around2OOSSPECIALIZED WASTE SYSTEMS INC 338545207C492/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TAS ENVIRONMENTAL SERVICES LP1290854Sep 5, 2025Nov 28, 20252TX
SPECIALIZED WASTE SYSTEMS INC338545Apr 5, 2024Apr 5, 20241TX
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.
207C492TXTAS ENVIRONMENTAL SERVICES LPSep 5, 2025Nov 28, 20252
207C492TXSPECIALIZED WASTE SYSTEMS INCApr 5, 2024Apr 5, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 19, 2026