Equipment unit · VIN-decoded · NHTSA vPIC

1991 Ste

1S9T7422XM0017058 · Trailer · TRAILER
Carriers run under1
23 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJan 10, 2024
CA
Last seenDec 2, 2025
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1S9T7422XM0017058
Make
Ste
Model
STE
Model year
1991
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 26, 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
T7422

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1991 or 2021

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

North American serial sequence
017058

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
STE

Prefix basis · 174 decoded VINs at 100.0% prefix purity.

Model
STE

Prefix basis · 174 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
1991

Observed directly for this VIN via NHTSA vPIC.

Observed make
STE

Observed directly for this VIN via NHTSA vPIC.

Observed model
STE

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 · Jan 10, 2024 – Dec 2, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 2, 2025CAIII · Driver-only1HILL BROTHERS CHEMICAL COMPANY 501464BG1310/CA
Apr 22, 2024CAI · Full0HILL BROTHERS CHEMICAL COMPANY 501464BG1310/CA
Jan 10, 2024CAI · Full0HILL BROTHERS CHEMICAL COMPANY 501464BG1310/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HILL BROTHERS CHEMICAL COMPANY50146Jan 10, 2024Dec 2, 20253AZ
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.
4BG1310CAHILL BROTHERS CHEMICAL COMPANYJan 10, 2024Dec 2, 20253
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026