Equipment unit · VIN-decoded · NHTSA vPIC

3H4SS4228K3710874

Not yet decoded
Carriers run under2
9 mo
Inspections2
all-time
OOS inspections1
of 2
First seenJun 11, 2025
OK
Last seenMar 19, 2026
OK
Inspected under 2 different carriers in 9 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

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
SS422

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1989 or 2019

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

North American serial sequence
710874

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 · 127 decoded VINs at 100.0% prefix purity.

Model
Heil Trailer International

Prefix basis · 127 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 · Jun 11, 2025 – Mar 19, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 19, 2026OKIII · Driver-only2MARKS CONSTRUCTION LLC 868048BR7845/OK
Jun 11, 2025OKII · Walk-around1OOSGEOSPHERE ENERGY SERVICES LLC 3450205BR7845/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MARKS CONSTRUCTION LLC868048Mar 19, 2026Mar 19, 20261OK
GEOSPHERE ENERGY SERVICES LLC3450205Jun 11, 2025Jun 11, 20251OK
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.
BR7845OKMARKS CONSTRUCTION LLCMar 19, 2026Mar 19, 20261
BR7845OKGEOSPHERE ENERGY SERVICES LLCJun 11, 2025Jun 11, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC