Equipment unit · VIN-decoded · NHTSA vPIC

3H4SS412XP3120734

Not yet decoded
Carriers run under1
16 mo
Inspections2
all-time
OOS inspections0
of 2
First seenOct 12, 2023
SC
Last seenFeb 10, 2025
WV
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
3H4

Deterministic · VIN positions 1–3.

Vehicle descriptor section
SS412

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1993 or 2023

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

North American serial sequence
120734

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
HEIL TRAILER INTERNATIONAL

Prefix basis · 100 decoded VINs at 100.0% prefix purity.

Model
Heil Trailer International

Prefix basis · 100 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 · Oct 12, 2023 – Feb 10, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 10, 2025WVII · Walk-around4HOUSTON TRANSPORTATION INCORPORATED 3386765130201/ME
Oct 12, 2023SCIII · Driver-only2HOUSTON TRANSPORTATION INCORPORATED 338676530201/ME
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HOUSTON TRANSPORTATION INCORPORATED338676Oct 12, 2023Feb 10, 20252NC
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.
5130201MEHOUSTON TRANSPORTATION INCORPORATEDFeb 10, 2025Feb 10, 20251
530201MEHOUSTON TRANSPORTATION INCORPORATEDOct 12, 2023Oct 12, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC