Equipment unit · VIN-decoded · NHTSA vPIC

2015 Kenworth T4 Series

1NKBLJ0X1FJ455153 · Truck · INCOMPLETE VEHICLE
Carriers run under2
17 mo
Inspections4
all-time
OOS inspections3
of 4
First seenNov 21, 2024
NJ
Last seenApr 22, 2026
NJ
Inspected under 2 different carriers in 17 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
1NKBLJ0X1FJ455153
Make
Kenworth
Model
T4 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
Jul 19, 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
BLJ0X

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
455153

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 · 68 decoded VINs at 100.0% prefix purity.

Model
T4 Series

Prefix basis · 68 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
2015

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T4 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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Nov 21, 2024 – Apr 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 22, 2026NJII · Walk-around5OOSINTERSTATE WASTE SERVICES INC 825796D941AA/NJ
Jan 28, 2026NJII · Walk-around8OOSINTERSTATE WASTE SERVICES INC 825796D941AA/NJ
Dec 13, 2024NJII · Walk-around9OOSGRAND SANITATION SERVICE 1084011XRBL75/NJ
Nov 21, 2024NJIII · Driver-only1GRAND SANITATION SERVICE 1084011XRBL75/NJ
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
INTERSTATE WASTE SERVICES INC825796Jan 28, 2026Apr 22, 20262NJ
GRAND SANITATION SERVICE1084011Nov 21, 2024Dec 13, 20242NJ
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.
D941AANJ1INTERSTATE WASTE SERVICES INCJan 28, 2026Apr 22, 20262
XRBL75NJGRAND SANITATION SERVICENov 21, 2024Dec 13, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 19, 2026