Equipment unit · VIN-decoded · NHTSA vPIC

2008 Kenworth T6 Series

1XKADB9X58J216277 · Truck-Tractor · TRUCK
Carriers run under2
30 mo
Inspections4
all-time
OOS inspections2
of 4
First seenSep 11, 2023
IA
Last seenMar 9, 2026
MO
Inspected under 2 different carriers in 30 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
1XKADB9X58J216277
Make
Kenworth
Model
T6 Series
Model year
2008
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 10, 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
ADB9X

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
2008 or 2038

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

North American serial sequence
216277

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
2008

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 · Sep 11, 2023 – Mar 9, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 9, 2026MOIII · Driver-only0STEPHENSON TRANSPORT LLC 3243531NOPLATE/WI
Nov 1, 2023NMII · Walk-around4OOSPFEIFFER FARMS TRUCKING LLC 2297326P821376/IL
Oct 24, 2023ILIII · Driver-only3PFEIFFER FARMS TRUCKING LLC 2297326P821376/IL
Sep 11, 2023IAIII · Driver-only5OOSPFEIFFER FARMS TRUCKING LLC 2297326P821376/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
STEPHENSON TRANSPORT LLC3243531Mar 9, 2026Mar 9, 20261WI
PFEIFFER FARMS TRUCKING LLC2297326Sep 11, 2023Nov 1, 20233IL
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.
NOPLATEWISTEPHENSON TRANSPORT LLCMar 9, 2026Mar 9, 20261
P821376ILPFEIFFER FARMS TRUCKING LLCSep 11, 2023Nov 1, 20233
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 10, 2026