Equipment unit · VIN-decoded · NHTSA vPIC

2028 Stoughton Trailers

1DW1A532XWS158509 · Trailer · TRAILER
Carriers run under3
33 mo
Inspections8
all-time
OOS inspections2
of 8
First seenJun 26, 2023
TX
Last seenMar 2, 2026
TX
Inspected under 3 different carriers in 33 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
1DW1A532XWS158509
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2028
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 17, 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
1998 or 2028

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

North American serial sequence
158509

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
2028

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 · Jun 26, 2023 – Mar 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 2, 2026TXII · Walk-around0SERGIO VARELA MALDONADO 725226A05155B/TX
Apr 2, 2025USI · Full1CLAUDIA ELENA MARTINEZ MONTELONGO 4037171A72383A/TX
Sep 19, 2024USI · Full3OOSCLAUDIA ELENA MARTINEZ MONTELONGO 4037171A7438A/TX
Sep 13, 2024NMIII · Driver-only1CLAUDIA ELENA MARTINEZ MONTELONGO 4037171A62099A/TX
Mar 22, 2024NMI · Full1RODOLFO FLORES RODRIGUEZ 2902899A72383A/TX
Feb 13, 2024NMI · Full1OOSCLAUDIA ELENA MARTINEZ MONTELONGO 4037171A72383A/TX
Aug 1, 2023TXI · Full6RODOLFO FLORES RODRIGUEZ 2902899A72383A/TX
Jun 26, 2023TXI · Full4RODOLFO FLORES RODRIGUEZ 2902899A62099A/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SERGIO VARELA MALDONADO725226Mar 2, 2026Mar 2, 20261CI
CLAUDIA ELENA MARTINEZ MONTELONGO4037171Feb 13, 2024Apr 2, 20254CI
RODOLFO FLORES RODRIGUEZ2902899Jun 26, 2023Mar 22, 20243CI
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.
A05155BTXSERGIO VARELA MALDONADOMar 2, 2026Mar 2, 20261
A72383ATXCLAUDIA ELENA MARTINEZ MONTELONGOFeb 13, 2024Apr 2, 20252
A7438ATXCLAUDIA ELENA MARTINEZ MONTELONGOSep 19, 2024Sep 19, 20241
A62099ATXCLAUDIA ELENA MARTINEZ MONTELONGOSep 13, 2024Sep 13, 20241
A72383ATXRODOLFO FLORES RODRIGUEZAug 1, 2023Mar 22, 20242
A62099ATXRODOLFO FLORES RODRIGUEZJun 26, 2023Jun 26, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 17, 2026