Equipment unit · VIN-decoded · NHTSA vPIC

4T9TK4225K1000384

Not yet decoded
Carriers run under2
28 mo
Inspections2
all-time
OOS inspections2
of 2
First seenAug 27, 2023
TX
Last seenDec 22, 2025
TX
Inspected under 2 different carriers in 28 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
4T9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
TK422

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

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
000384

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
TANKKO LLC

Prefix basis · 15 decoded VINs at 100.0% prefix purity.

Model
Tankko LLC

Prefix basis · 15 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 · Aug 27, 2023 – Dec 22, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 22, 2025TXII · Walk-around9OOSACH SERVICES LLC 3222400163B433/TX
Aug 27, 2023TXII · Walk-around11OOSARTURO HERNANDEZ JR 2996068163B433/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ACH SERVICES LLC3222400Dec 22, 2025Dec 22, 20251TX
ARTURO HERNANDEZ JR2996068Aug 27, 2023Aug 27, 20231TX
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.
163B433TXACH SERVICES LLCDec 22, 2025Dec 22, 20251
163B433TXARTURO HERNANDEZ JRAug 27, 2023Aug 27, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC