Equipment unit · VIN-decoded · NHTSA vPIC

2015 Stoughton Trailers

1DW1A2817FS553150 · Trailer · TRAILER
Carriers run under2
11 mo
Inspections3
all-time
OOS inspections1
of 3
First seenFeb 1, 2024
TN
Last seenJan 29, 2025
WA
Inspected under 2 different carriers in 11 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
1DW1A2817FS553150
Make
Stoughton Trailers
Model
Stoughton Trailers
Model year
2015
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.
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
1A281

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1985 or 2015

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

North American serial sequence
553150

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 · 140 decoded VINs at 100.0% prefix purity.

Model
Stoughton Trailers

Prefix basis · 140 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
2015

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 · Feb 1, 2024 – Jan 29, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 29, 2025WAII · Walk-around2OOSUNITED PARCEL SERVICE CANADA LTD 290357P455089/IN
Oct 9, 2024WVIII · Driver-only1UNITED PARCEL SERVICE INC 21800P455089/IN
Feb 1, 2024TNI · Full0UNITED PARCEL SERVICE INC 21800P455089/UK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
UNITED PARCEL SERVICE CANADA LTD290357Jan 29, 2025Jan 29, 20251ON
UNITED PARCEL SERVICE INC21800Feb 1, 2024Oct 9, 20242GA
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.
P455089INUNITED PARCEL SERVICE CANADA LTDJan 29, 2025Jan 29, 20251
P455089INUNITED PARCEL SERVICE INCOct 9, 2024Oct 9, 20241
P455089UKUNITED PARCEL SERVICE INCFeb 1, 2024Feb 1, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 19, 2026