Equipment unit · VIN-decoded · NHTSA vPIC

2021 Stoughton Trailers

1DW1A532XMSA46857 · Trailer · TRAILER
Carriers run under4
16 mo
Inspections4
all-time
OOS inspections0
of 4
First seenJun 19, 2025
TX
Last seenOct 22, 2026
TX
Inspected under 4 different carriers in 16 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
1DW1A532XMSA46857
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 14, 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
X · valid

Deterministic · position 9; calculated value X.

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
A46857

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 · Jun 19, 2025 – Oct 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 22, 2026TXII · Walk-around3—RJ TRANSPORTATION SERVICES LLC 31651305175438/ME
Oct 3, 2026TXII · Walk-around0—DX XPRESS INC 21280195175438/ME
Oct 23, 2025MIII · Walk-around0—KRYSTAL TRANSPORT LLC 19982145175438/ME
Jun 19, 2025TXII · Walk-around2—INTER EXCHANGE LLC 39734845175438/ME
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
RJ TRANSPORTATION SERVICES LLC3165130Oct 22, 2026Oct 22, 20261TX
DX XPRESS INC2128019Oct 3, 2026Oct 3, 20261TX
KRYSTAL TRANSPORT LLC1998214Oct 23, 2025Oct 23, 20251IN
INTER EXCHANGE LLC3973484Jun 19, 2025Jun 19, 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.
5175438ME2RJ TRANSPORTATION SERVICES LLCOct 22, 2026 → Oct 22, 20261
5175438ME2DX XPRESS INCOct 3, 2026 → Oct 3, 20261
5175438ME—KRYSTAL TRANSPORT LLCOct 23, 2025 → Oct 23, 20251
5175438ME—INTER EXCHANGE LLCJun 19, 2025 → Jun 19, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 14, 2026