Equipment unit · VIN-decoded · NHTSA vPIC

2011 Kenworth T8 Series

1NKDX4TXXBJ277828 · Truck · INCOMPLETE VEHICLE
T800
Carriers run under1
12 mo
Inspections5
all-time
OOS inspections1
of 5
First seenApr 10, 2025
RI
Last seenApr 24, 2026
RI
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NKDX4TXXBJ277828
Make
Kenworth
Model
T8 Series
Model year
2011
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 28, 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
1NK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
DX4TX

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1981 or 2011

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

North American serial sequence
277828

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 · 453 decoded VINs at 95.8% prefix purity.

Model
T8 Series

Prefix basis · 453 decoded VINs at 95.8% prefix purity.

Model line
T800

Sourced label · prefix basis 453 decoded VINs at 95.8% 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
2011

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T8 Series

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

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 10, 2025 – Apr 24, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 24, 2026RIIII · Driver-only0KNIGHT & SON CORP 33972712897B/MA
Oct 6, 2025MAIII · Driver-only3OOSKNIGHT & SON CORP 33972712897B/MA
Sep 24, 2025MAIII · Driver-only2KNIGHT & SON CORP 33972712897B/MA
Sep 11, 2025MAIII · Driver-only3KNIGHT & SON CORP 33972712897B/MA
Apr 10, 2025RIIII · Driver-only0KNIGHT & SON CORP 33972712897B/MA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
KNIGHT & SON CORP3397271Apr 10, 2025Apr 24, 20265MA
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.
2897BMAKNIGHT & SON CORPApr 10, 2025Apr 24, 20265
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026