Equipment unit · VIN-decoded · NHTSA vPIC

2015 Kenworth T6 Series

3WKAD40X0FF860439 · Truck-Tractor · TRUCK
Carriers run under2
35 mo
Inspections15
all-time
OOS inspections6
of 15
First seenJun 22, 2023
US
Last seenMay 14, 2026
TX
Inspected under 2 different carriers in 35 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

VIN
3WKAD40X0FF860439
Make
Kenworth
Model
T6 Series
Model year
2015
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 14, 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
3WK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AD40X

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

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
860439

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
2015

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T6 Series

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

Observed directly for this VIN via NHTSA vPIC.

Not established

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jun 22, 2023 – May 14, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 14, 2026TXII · Walk-around12OOSMANUEL ALEJANDRO MARROQUIN GARZA 412384849AR6P/MX
Oct 7, 2025USI · Full6OOSMANUEL ALEJANDRO MARROQUIN GARZA 412384849AR6P/MX
Aug 29, 2025TXII · Walk-around7MANUEL ALEJANDRO MARROQUIN GARZA 412384849AR6P/MX
Jul 4, 2025TXII · Walk-around8OOSMANUEL ALEJANDRO MARROQUIN GARZA 412384849AR6P/MX
Jun 4, 2025USI · Full9OOSMANUEL ALEJANDRO MARROQUIN GARZA 412384849AR6P/MX
May 27, 2025TXII · Walk-around4MANUEL ALEJANDRO MARROQUIN GARZA 412384849AR6P/MX
May 20, 2025USI · Full7MANUEL ALEJANDRO MARROQUIN GARZA 412384849AR6P/MX
May 6, 2025TXII · Walk-around4MANUEL ALEJANDRO MARROQUIN GARZA 412384849AR6P/MX
Mar 25, 2025USI · Full7MANUEL ALEJANDRO MARROQUIN GARZA 412384849AR6P/MX
Nov 19, 2024USI · Full11MANUEL ALEJANDRO MARROQUIN GARZA 412384849AR6P/MX
Jun 5, 2024USII · Walk-around1ALEJANDRO MARROQUIN ELIZONDO 101509949AR6P/MX
Apr 8, 2024TXII · Walk-around5ALEJANDRO MARROQUIN ELIZONDO 101509949AR6P/MX
Dec 1, 2023TXII · Walk-around4ALEJANDRO MARROQUIN ELIZONDO 101509949AR6P/MX
Nov 10, 2023TXII · Walk-around10OOSALEJANDRO MARROQUIN ELIZONDO 101509949AR6P/MX
Jun 22, 2023USII · Walk-around1OOSALEJANDRO MARROQUIN ELIZONDO 101509949AR6P/MX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MANUEL ALEJANDRO MARROQUIN GARZA4123848Nov 19, 2024May 14, 202610TA
ALEJANDRO MARROQUIN ELIZONDO1015099Jun 22, 2023Jun 5, 20245TA
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.
49AR6PMXMANUEL ALEJANDRO MARROQUIN GARZANov 19, 2024May 14, 202610
49AR6PMXALEJANDRO MARROQUIN ELIZONDOJun 22, 2023Jun 5, 20245
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 14, 2026