Equipment unit · VIN-decoded · NHTSA vPIC

2014 Kenworth T6 Series

3WKAD09X4EF851172 · Truck-Tractor · TRUCK
T600
Carriers run under1
17 mo
Inspections17
all-time
OOS inspections8
of 17
First seenApr 2, 2024
US
Last seenSep 22, 2025
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3WKAD09X4EF851172
Make
Kenworth
Model
T6 Series
Model year
2014
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
AD09X

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1984 or 2014

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

North American serial sequence
851172

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
KENWORTH

Prefix basis · 67 decoded VINs at 92.5% prefix purity.

Model
T6 Series

Prefix basis · 67 decoded VINs at 92.5% prefix purity.

Model line
T600

Sourced label · prefix basis 67 decoded VINs at 92.5% prefix purity.

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.

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
2014

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

  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Apr 2, 2024 – Sep 22, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 22, 2025TXII · Walk-around5OOSQUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
Jul 12, 2025TXII · Walk-around4QUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
May 7, 2025TXII · Walk-around1OOSQUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
Apr 15, 2025TXII · Walk-around4QUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
Feb 15, 2025TXII · Walk-around3QUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
Jan 8, 2025USII · Walk-around1OOSQUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
Jan 3, 2025USII · Walk-around0QUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
Nov 16, 2024TXIII · Driver-only0QUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
Sep 18, 2024TXIII · Driver-only1QUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
Aug 22, 2024TXIII · Driver-only1QUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
Aug 21, 2024USII · Walk-around1OOSQUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
Jul 6, 2024TXII · Walk-around1QUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
Jun 28, 2024TXII · Walk-around5OOSQUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/TA
Jun 7, 2024USII · Walk-around3OOSQUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
May 14, 2024TXII · Walk-around9QUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/TA
Apr 19, 2024TXII · Walk-around8OOSQUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/NL
Apr 2, 2024USII · Walk-around2OOSQUIN LOGISTICS EXPRESS SA DE CV 312616678AY7B/MX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
QUIN LOGISTICS EXPRESS SA DE CV3126166Apr 2, 2024Sep 22, 202517NL
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.
78AY7BMXQUIN LOGISTICS EXPRESS SA DE CVApr 2, 2024Sep 22, 202514
78AY7BTAQUIN LOGISTICS EXPRESS SA DE CVMay 14, 2024Jun 28, 20242
78AY7BNLQUIN LOGISTICS EXPRESS SA DE CVApr 19, 2024Apr 19, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 14, 2026