Equipment unit · VIN-decoded · NHTSA vPIC

2021 Stoughton Trailers

1DW1A5328MBA58585 · Trailer · TRAILER
Carriers run under2
7 mo
Inspections5
all-time
OOS inspections0
of 5
First seenMar 6, 2026
WI
Last seenOct 31, 2026
WI
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
1DW1A5328MBA58585
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 27, 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
1991 or 2021

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

North American serial sequence
A58585

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.

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 · Mar 6, 2026 – Oct 31, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 31, 2026WIII · Walk-around3—PROSTAR EXPRESS INC 34899981059145ST/IL
Sep 22, 2026INIII · Driver-only4—PROSTAR EXPRESS INC 34899981059145ST/IL
Jul 20, 2026ILIII · Driver-only0—PROSTAR EXPRESS INC 34899981059145ST/IL
May 8, 2026INII · Walk-around2—PRIME LOGISTICS LLC 3321702798620/WI
Mar 6, 2026WIII · Walk-around0—PRIME LOGISTICS LLC 3321702798620/WI
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PROSTAR EXPRESS INC3489998Jul 20, 2026Oct 31, 20263IL
PRIME LOGISTICS LLC3321702Mar 6, 2026May 8, 20262WI
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.
1059145STIL2PROSTAR EXPRESS INCJul 20, 2026 → Oct 31, 20263
798620WI—PRIME LOGISTICS LLCMar 6, 2026 → May 8, 20262
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 27, 2026