Equipment unit · VIN-decoded · NHTSA vPIC

2025 Stoughton Trailers

1DW1A5320SS910292 · Trailer · TRAILER
Carriers run under2
20 mo
Inspections8
all-time
OOS inspections5
of 8
First seenApr 24, 2024
CA
Last seenDec 16, 2025
CA
Inspected under 2 different carriers in 20 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
1DW1A5320SS910292
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2025
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
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1995 or 2025

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

North American serial sequence
910292

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
2025

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 · Apr 24, 2024 – Dec 16, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 16, 2025CAI · Full5OOSYOLANDA GUZMAN ORTIZ 29540754EN4481/CA
Nov 21, 2025CAI · Full5OOSMARIO A NAVARRETE MEJORADO 21412664EN4481/CA
Jul 17, 2025CAI · Full2MARIO A NAVARRETE MEJORADO 21412664EN4481/CA
Apr 22, 2025CAI · Full13OOSMARIO A NAVARRETE MEJORADO 21412664EN4481/CA
Jan 21, 2025CAI · Full4OOSMARIO A NAVARRETE MEJORADO 21412664EN4481/CA
Nov 25, 2024CAII · Walk-around0MARIO A NAVARRETE MEJORADO 21412664EN4481/CA
Apr 24, 2024CAI · Full6OOSMARIO A NAVARRETE MEJORADO 21412664EN4481/CA
Apr 24, 2024CAI · Full2MARIO A NAVARRETE MEJORADO 21412664EN4481/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
YOLANDA GUZMAN ORTIZ2954075Dec 16, 2025Dec 16, 20251BN
MARIO A NAVARRETE MEJORADO2141266Apr 24, 2024Nov 21, 20257CA
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.
4EN4481CAYOLANDA GUZMAN ORTIZDec 16, 2025Dec 16, 20251
4EN4481CAMARIO A NAVARRETE MEJORADOApr 24, 2024Nov 21, 20257
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 17, 2026