Equipment unit · VIN-decoded · NHTSA vPIC

2025 Kenworth T680

1XKYD49X6SJ158827 · Truck-Tractor · TRUCK
Carriers run under1
10 mo
Inspections9
all-time
OOS inspections2
of 9
First seenJul 12, 2025
TN
Last seenMay 30, 2026
AZ
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XKYD49X6SJ158827
Make
Kenworth
Model
T680
Model year
2025
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 20, 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
1XK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
YD49X

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1995 or 2025

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

North American serial sequence
158827

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 · 43,483 decoded VINs at 100.0% prefix purity.

Model
T680

Prefix basis · 43,483 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.

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
2025

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T680

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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 12, 2025 – May 30, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 30, 2026AZII · Walk-around2NAVAJO EXPRESS INC 2023813046744/IN
May 21, 2026CAI · Full2OOSNAVAJO EXPRESS INC 2023813046744/IN
Mar 19, 2026NEIII · Driver-only1NAVAJO EXPRESS INC 2023813046744/IN
Feb 18, 2026CAII · Walk-around1NAVAJO EXPRESS INC 2023813046744/IN
Jan 19, 2026INIII · Driver-only2NAVAJO EXPRESS INC 2023813046744/IN
Nov 18, 2025NEIII · Driver-only1NAVAJO EXPRESS INC 2023813046744/IN
Oct 15, 2025NMI · Full3OOSNAVAJO EXPRESS INC 2023813046744/IN
Aug 5, 2025NMII · Walk-around0NAVAJO EXPRESS INC 2023813046744/IN
Jul 12, 2025TNIII · Driver-only0NAVAJO EXPRESS INC 2023813046744/IN
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
NAVAJO EXPRESS INC202381Jul 12, 2025May 30, 20269CO
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.
3046744INNAVAJO EXPRESS INCJul 12, 2025May 30, 20269
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 20, 2026