Equipment unit · VIN-decoded · NHTSA vPIC

1S9S00006Y0009958

Not yet decoded
Carriers run under1
8 mo
Inspections2
all-time
OOS inspections0
of 2
First seenDec 16, 2024
CA
Last seenAug 4, 2025
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

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
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
2000 or 2030

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

North American serial sequence
009958

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.

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 16, 2024 – Aug 4, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 4, 2025CAI · Full0HI GRADE MATERIALS CO 4783614NW1069/CA
Dec 16, 2024CAI · Full2HI GRADE MATERIALS CO 4783614NW1069/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HI GRADE MATERIALS CO478361Dec 16, 2024Aug 4, 20252CA
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.
4NW1069CAHI GRADE MATERIALS CODec 16, 2024Aug 4, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC