Equipment unit · VIN-decoded · NHTSA vPIC

2021 Stoughton trailers Stoughton Trailers

1DW1A5320MSA46317 · Trailer · TRAILER
Carriers run under2
3 mo
Inspections3
all-time
OOS inspections0
of 3
First seenMar 3, 2025
OH
Last seenJun 4, 2025
AL
Inspected under 2 different carriers in 3 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
1DW1A5320MSA46317
Make
Stoughton trailers
Model
Stoughton Trailers
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 19, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
02

Inspection history

Every roadside inspection of this VIN, newest first · Mar 3, 2025 – Jun 4, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 4, 2025ALIII · Driver-only6—NAPPER TRANSPORT LLC 34698263230484/ME
Apr 22, 2025TXII · Walk-around2—NAPPER TRANSPORT LLC 34698263230484/ME
Mar 3, 2025OHIII · Driver-only2—2131 TRANSPORTATION LLC 37628513230484/ME
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
NAPPER TRANSPORT LLC3469826Apr 22, 2025Jun 4, 20252NC
2131 TRANSPORTATION LLC3762851Mar 3, 2025Mar 3, 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.
3230484ME—NAPPER TRANSPORT LLCApr 22, 2025 → Jun 4, 20252
3230484ME—2131 TRANSPORTATION LLCMar 3, 2025 → Mar 3, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 19, 2026