Equipment unit · VIN-decoded · NHTSA vPIC

2013 Doonan Specialized Trailer

1D9BG5335D1609203 · Trailer · TRAILER
Carriers run under2
36 mo
Inspections6
all-time
OOS inspections1
of 6
First seenJul 20, 2023
WA
Last seenJul 24, 2026
WA
Inspected under 2 different carriers in 36 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
1D9BG5335D1609203
Make
Doonan Specialized Trailer
Model
Doonan Specialized Trailer
Model year
2013
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 28, 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
BG533

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
1983 or 2013

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

North American serial sequence
609203

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
DOONAN SPECIALIZED TRAILER

Prefix basis · 85 decoded VINs at 100.0% prefix purity.

Model
Doonan Specialized Trailer

Prefix basis · 85 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
2013

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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 20, 2023 – Jul 24, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 24, 2026WAIII · Driver-only0BIG BOY TRANSPORTS LLC 42688589182XU/WA
Apr 9, 2025WAIII · Driver-only0BIG BOY TRANSPORTS LLC 42688589182XU/WA
Feb 28, 2025WAII · Walk-around2OOSBIG BOY TRANSPORTS LLC 42688589182XU/WA
Feb 10, 2025WAIII · Driver-only1BIG BOY TRANSPORTS LLC 42688589182XU/WA
May 29, 2024WAIII · Driver-only0NORTHWEST LINES INC 15415699182XU/WA
Jul 20, 2023WAII · Walk-around0NORTHWEST LINES INC 15415699182XU/WA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BIG BOY TRANSPORTS LLC4268858Feb 10, 2025Jul 24, 20264WA
NORTHWEST LINES INC1541569Jul 20, 2023May 29, 20242WA
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.
9182XUWA2BIG BOY TRANSPORTS LLCFeb 10, 2025Jul 24, 20264
9182XUWANORTHWEST LINES INCJul 20, 2023May 29, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026