Equipment unit · VIN-decoded · NHTSA vPIC

2024 Superior Trailer Works

1S9S00008R0009851 · Trailer · TRAILER
Carriers run under1
18 mo
Inspections4
all-time
OOS inspections0
of 4
First seenDec 5, 2023
CA
Last seenJun 24, 2025
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1S9S00008R0009851
Make
Superior Trailer Works
Model
Superior Trailer Works
Model year
2024
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 7, 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
1S9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
S0000

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1994 or 2024

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

North American serial sequence
009851

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
SUPERIOR TRAILER WORKS

Prefix basis · 135 decoded VINs at 100.0% prefix purity.

Model
Superior Trailer Works

Prefix basis · 135 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
2024

Observed directly for this VIN via NHTSA vPIC.

Observed make
SUPERIOR TRAILER WORKS

Observed directly for this VIN via NHTSA vPIC.

Observed model
Superior Trailer Works

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 · Dec 5, 2023 – Jun 24, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 24, 2025CAII · Walk-around0CROWN HILL MATERIALS LLC 26974714VR6265/CA
Mar 18, 2025CAI · Full0CROWN HILL MATERIALS LLC 26974714VR6265/CA
Jan 8, 2024CAIII · Driver-only0CROWN HILL MATERIALS LLC 26974714SR2583/CA
Dec 5, 2023CAI · Full0CROWN HILL MATERIALS LLC 26974714SR2583/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CROWN HILL MATERIALS LLC2697471Dec 5, 2023Jun 24, 20254CA
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.
4VR6265CACROWN HILL MATERIALS LLCMar 18, 2025Jun 24, 20252
4SR2583CACROWN HILL MATERIALS LLCDec 5, 2023Jan 8, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026