Equipment unit · VIN-decoded · NHTSA vPIC

2021 Doonan Specialized Trailer

1D9BW5133M1609321 · Trailer · TRAILER
Carriers run under2
7 mo
Inspections2
all-time
OOS inspections2
of 2
First seenApr 12, 2024
WA
Last seenNov 24, 2024
WA
Inspected under 2 different carriers in 7 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
1D9BW5133M1609321
Make
Doonan Specialized Trailer
Model
Doonan Specialized Trailer
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 12, 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
BW513

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1991 or 2021

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

North American serial sequence
609321

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
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
DOONAN SPECIALIZED TRAILER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Doonan Specialized Trailer

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 · Apr 12, 2024 – Nov 24, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 24, 2024WAII · Walk-around1OOSLANDSTROM INC 15316792095AD/WA
Apr 12, 2024WAII · Walk-around1OOSLTC HEAVY HAUL LLC 291792192095AD/WA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
LANDSTROM INC153167Nov 24, 2024Nov 24, 20241WA
LTC HEAVY HAUL LLC2917921Apr 12, 2024Apr 12, 20241WA
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.
92095ADWALANDSTROM INCNov 24, 2024Nov 24, 20241
92095ADWALTC HEAVY HAUL LLCApr 12, 2024Apr 12, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 12, 2026