Equipment unit · VIN-decoded · NHTSA vPIC

2020 Stoughton Trailers

1DW1A5328LBA31840 · Trailer · TRAILER
Carriers run under1
17 mo
Inspections4
all-time
OOS inspections2
of 4
First seenJan 7, 2025
WI
Last seenJun 19, 2026
IL
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1DW1A5328LBA31840
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2020
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 23, 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
1DW

Deterministic · VIN positions 1–3.

Vehicle descriptor section
1A532

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1990 or 2020

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

North American serial sequence
A31840

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
STOUGHTON TRAILERS

Prefix basis · 12,945 decoded VINs at 100.0% prefix purity.

Model
Stoughton Trailers

Prefix basis · 12,945 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
2020

Observed directly for this VIN via NHTSA vPIC.

Observed make
STOUGHTON TRAILERS

Observed directly for this VIN via NHTSA vPIC.

Observed model
Stoughton Trailers

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 · Jan 7, 2025 – Jun 19, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 19, 2026ILII · Walk-around3TRU NORTH TRUCKING LLC 3309500F289499/MI
Feb 16, 2026WIII · Walk-around6OOSTRU NORTH TRUCKING LLC 3309500F289499/MI
Jan 8, 2025MNIII · Driver-only1TRU NORTH TRUCKING LLC 33095002567249/ME
Jan 7, 2025WIII · Walk-around4OOSTRU NORTH TRUCKING LLC 33095002567249/ME
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRU NORTH TRUCKING LLC3309500Jan 7, 2025Jun 19, 20264WI
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.
F289499MI2TRU NORTH TRUCKING LLCFeb 16, 2026Jun 19, 20262
2567249ME2TRU NORTH TRUCKING LLCJan 7, 2025Jan 8, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 23, 2026