Equipment unit · VIN-decoded · NHTSA vPIC

2025 Summit Trailers

1S8AD4021S0008950 · Trailer · TRAILER
Carriers run under2
5 mo
Inspections2
all-time
OOS inspections1
of 2
First seenAug 18, 2023
NC
Last seenJan 11, 2024
NC
Inspected under 2 different carriers in 5 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
1S8AD4021S0008950
Make
Summit Trailers
Model
SUMMIT TRAILERS
Model year
2025
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 30, 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
1S8

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AD402

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
008950

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
SUMMIT TRAILERS

Prefix basis · 5 decoded VINs at 100.0% prefix purity.

Model
SUMMIT TRAILERS

Prefix basis · 5 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
SUMMIT TRAILERS

Observed directly for this VIN via NHTSA vPIC.

Observed model
SUMMIT 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 · Aug 18, 2023 – Jan 11, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 11, 2024NCII · Walk-around0W TRANSPORTATION LLC 2901972318591/VA
Aug 18, 2023NCII · Walk-around1OOSJAMEL B MATHIS 1006624318591TM/VA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
W TRANSPORTATION LLC2901972Jan 11, 2024Jan 11, 20241NC
JAMEL B MATHIS1006624Aug 18, 2023Aug 18, 20231NC
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.
318591VAW TRANSPORTATION LLCJan 11, 2024Jan 11, 20241
318591TMVA2JAMEL B MATHISAug 18, 2023Aug 18, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 30, 2026