Equipment unit · VIN-decoded · NHTSA vPIC

2015 Kenworth T6 Series

1NKAL49X0FJ449554 · Truck · INCOMPLETE VEHICLE
T600
Carriers run under1
30 mo
Inspections13
all-time
OOS inspections2
of 13
First seenSep 26, 2023
AZ
Last seenMar 17, 2026
UT
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NKAL49X0FJ449554
Make
Kenworth
Model
T6 Series
Model year
2015
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 16, 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
AL49X

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
449554

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 · 18 decoded VINs at 100.0% prefix purity.

Model
T6 Series

Prefix basis · 18 decoded VINs at 100.0% prefix purity.

Model line
T600

Sourced label · prefix basis 18 decoded VINs at 100.0% 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
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

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 · Sep 26, 2023 – Mar 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 17, 2026UTIII · Driver-only2BROTHERS PRO TRANSPORT INC 3760657YP79255/CA
Jul 23, 2025KSII · Walk-around5BROTHERS PRO TRANSPORT INC 3760657YP79255/CA
Mar 4, 2025CAI · Full3BROTHERS PRO TRANSPORT INC 3760657YP79255/CA
Feb 25, 2025WAII · Walk-around5BROTHERS PRO TRANSPORT INC 3760657YP79255/CA
Feb 23, 2025CAIII · Driver-only0BROTHERS PRO TRANSPORT INC 3760657YP79255/CA
Jan 17, 2025AZII · Walk-around0BROTHERS PRO TRANSPORT INC 3760657YP79255/CA
Jan 14, 2025IAIII · Driver-only2OOSBROTHERS PRO TRANSPORT INC 3760657YP79255/CA
Jan 13, 2025KSIII · Driver-only0BROTHERS PRO TRANSPORT INC 3760657YP79255/CA
Sep 26, 2024CAII · Walk-around1BROTHERS PRO TRANSPORT INC 3760657YP79255/CA
Aug 20, 2024CAI · Full5OOSBROTHERS PRO TRANSPORT INC 3760657YP79255/CA
Jun 20, 2024CAII · Walk-around3BROTHERS PRO TRANSPORT INC 3760657YP79255/CA
Dec 14, 2023CAI · Full4BROTHERS PRO TRANSPORT INC 3760657YP79255/CA
Sep 26, 2023AZIII · Driver-only0BROTHERS PRO TRANSPORT INC 3760657YP79255/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BROTHERS PRO TRANSPORT INC3760657Sep 26, 2023Mar 17, 202613CA
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.
YP79255CABROTHERS PRO TRANSPORT INCSep 26, 2023Mar 17, 202613
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026