Equipment unit · VIN-decoded · NHTSA vPIC

2017 Stoughton Trailers

1DW1A5321HB731011 · Trailer · TRAILER
Carriers run under3
7 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJan 15, 2025
TX
Last seenAug 21, 2025
TX
Inspected under 3 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
1DW1A5321HB731011
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2017
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
1DW

Deterministic · VIN positions 1–3.

Vehicle descriptor section
1A532

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1987 or 2017

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

North American serial sequence
731011

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
2017

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 15, 2025 – Aug 21, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 21, 2025TXII · Walk-around0DIIM TRANSFER SA DE CV 3921827109C324/TX
Feb 25, 2025TXII · Walk-around0EP SOUTH WEST LOGISTICS INC 2990523109C324/TX
Jan 15, 2025TXII · Walk-around0FAT AND BROKE INC 1267279109C324/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DIIM TRANSFER SA DE CV3921827Aug 21, 2025Aug 21, 20251CI
EP SOUTH WEST LOGISTICS INC2990523Feb 25, 2025Feb 25, 20251TX
FAT AND BROKE INC1267279Jan 15, 2025Jan 15, 20251TX
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.
109C324TXDIIM TRANSFER SA DE CVAug 21, 2025Aug 21, 20251
109C324TXEP SOUTH WEST LOGISTICS INCFeb 25, 2025Feb 25, 20251
109C324TXFAT AND BROKE INCJan 15, 2025Jan 15, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 19, 2026