Equipment unit · VIN-decoded · NHTSA vPIC

2005 Doonan Specialized Trailer

1D9BG502X51208078 · Trailer · TRAILER
Carriers run under2
20 mo
Inspections3
all-time
OOS inspections1
of 3
First seenAug 4, 2023
SD
Last seenApr 26, 2025
OH
Inspected under 2 different carriers in 20 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
1D9BG502X51208078
Make
Doonan Specialized Trailer
Model
Doonan Specialized Trailer
Model year
2005
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
BG502

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
2005 or 2035

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

North American serial sequence
208078

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 · 49 decoded VINs at 100.0% prefix purity.

Model
Doonan Specialized Trailer

Prefix basis · 49 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
2005

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 · Aug 4, 2023 – Apr 26, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 26, 2025OHIII · Driver-only0GREENTREE TRANSPORTATION COMPANY 204961788775ST/IL
Sep 26, 2023MSII · Walk-around0WAGNER TRUCKING INC 243012788775/IL
Aug 4, 2023SDI · Full2OOSWAGNER TRUCKING INC 243012788775ST/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GREENTREE TRANSPORTATION COMPANY204961Apr 26, 2025Apr 26, 20251PA
WAGNER TRUCKING INC243012Aug 4, 2023Sep 26, 20232MN
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.
788775STILGREENTREE TRANSPORTATION COMPANYApr 26, 2025Apr 26, 20251
788775ILWAGNER TRUCKING INCSep 26, 2023Sep 26, 20231
788775STILWAGNER TRUCKING INCAug 4, 2023Aug 4, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 19, 2026