Equipment unit · VIN-decoded · NHTSA vPIC

2020 Stoughton Trailers

1DW1A5326LSA43307 · Trailer · TRAILER
Carriers run under4
25 mo
Inspections4
all-time
OOS inspections2
of 4
First seenMar 3, 2024
CA
Last seenApr 28, 2026
CA
Inspected under 4 different carriers in 25 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
1DW1A5326LSA43307
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2020
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 5, 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
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1990 or 2020

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

North American serial sequence
A43307

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
2020

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 · Mar 3, 2024 – Apr 28, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 28, 2026CAII · Walk-around1R S B TRUCKS 3915147TN2051/ID
Aug 12, 2024MOII · Walk-around9OOSFASON ENTRPRISES INC 2472877TN2051/ID
Mar 11, 2024CAI · Full7OOSSPIRIT CARRIERS INC 3544775TN2051/ID
Mar 3, 2024CAII · Walk-around1ALIAKSANDR SHPAK 3681378TN2051/ID
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
R S B TRUCKS3915147Apr 28, 2026Apr 28, 20261CA
FASON ENTRPRISES INC2472877Aug 12, 2024Aug 12, 20241TN
SPIRIT CARRIERS INC3544775Mar 11, 2024Mar 11, 20241IL
ALIAKSANDR SHPAK3681378Mar 3, 2024Mar 3, 20241CA
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.
TN2051IDR S B TRUCKSApr 28, 2026Apr 28, 20261
TN2051IDFASON ENTRPRISES INCAug 12, 2024Aug 12, 20241
TN2051IDSPIRIT CARRIERS INCMar 11, 2024Mar 11, 20241
TN2051IDALIAKSANDR SHPAKMar 3, 2024Mar 3, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 5, 2026