Equipment unit · VIN-decoded · NHTSA vPIC

2021 Stoughton Trailers

1DW1A5324MS721549 · Trailer · TRAILER
Carriers run under2
10 mo
Inspections6
all-time
OOS inspections2
of 6
First seenMar 14, 2024
US
Last seenJan 23, 2025
TX
Inspected under 2 different carriers in 10 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
1DW1A5324MS721549
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 22, 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
4 · valid

Deterministic · position 9; calculated value 4.

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
721549

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
2021

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 14, 2024 – Jan 23, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 23, 2025TXII · Walk-around3TRANSPORTES FERDEL SA DE CV 72373883Y725V/TX
Aug 8, 2024TXII · Walk-around1FERDEL CORPORATION 253038349W526V/TX
Jun 21, 2024TXII · Walk-around4OOSFERDEL CORPORATION 253038366W464V/TX
Jun 21, 2024TXII · Walk-around3FERDEL CORPORATION 253038358171Z/TX
Mar 28, 2024TXII · Walk-around0FERDEL CORPORATION 253038330X368V/TX
Mar 14, 2024USI · Full5OOSTRANSPORTES FERDEL SA DE CV 72373825W354V/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRANSPORTES FERDEL SA DE CV723738Mar 14, 2024Jan 23, 20252TA
FERDEL CORPORATION2530383Mar 28, 2024Aug 8, 20244TX
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.
83Y725VTXTRANSPORTES FERDEL SA DE CVJan 23, 2025Jan 23, 20251
49W526VTXFERDEL CORPORATIONAug 8, 2024Aug 8, 20241
58171ZTXFERDEL CORPORATIONJun 21, 2024Jun 21, 20241
66W464VTXFERDEL CORPORATIONJun 21, 2024Jun 21, 20241
30X368VTXFERDEL CORPORATIONMar 28, 2024Mar 28, 20241
25W354VTXTRANSPORTES FERDEL SA DE CVMar 14, 2024Mar 14, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 22, 2026