Equipment unit · VIN-decoded · NHTSA vPIC

3E1FB7234FSV21389

Not yet decoded
Carriers run under2
14 mo
Inspections2
all-time
OOS inspections1
of 2
First seenJan 13, 2025
TX
Last seenMar 21, 2026
AR
Inspected under 2 different carriers in 14 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
3E1

Deterministic · VIN positions 1–3.

Vehicle descriptor section
FB723

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1985 or 2015

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

North American serial sequence
V21389

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
BULK TANK INTERNATIONAL

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

Model
Bulk Tank 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 · Jan 13, 2025 – Mar 21, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 21, 2026ARII · Walk-around2OOSSHELTON SERVICES INC 37156821964LE/OK
Jan 13, 2025TXII · Walk-around1HENIFF TRANSPORTATION SYSTEMS LLC 7594931964LE/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SHELTON SERVICES INC3715682Mar 21, 2026Mar 21, 20261TX
HENIFF TRANSPORTATION SYSTEMS LLC759493Jan 13, 2025Jan 13, 20251IL
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.
1964LEOKSHELTON SERVICES INCMar 21, 2026Mar 21, 20261
1964LEOK2HENIFF TRANSPORTATION SYSTEMS LLCJan 13, 2025Jan 13, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC