Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth T880

1NKZLP0XXMJ441461 · Truck · INCOMPLETE VEHICLE
Carriers run under2
27 mo
Inspections4
all-time
OOS inspections1
of 4
First seenJul 31, 2023
MT
Last seenOct 23, 2025
WA
Inspected under 2 different carriers in 27 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
1NKZLP0XXMJ441461
Make
Kenworth
Model
T880
Model year
2021
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 6, 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
ZLP0X

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1991 or 2021

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

North American serial sequence
441461

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 · 946 decoded VINs at 100.0% prefix purity.

Model
T880

Prefix basis · 946 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
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T880

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 · Jul 31, 2023 – Oct 23, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 23, 2025WAI · Full5OOSALLIANCE CONCRETE PUMPS INC 1188836TRIP/WA
Sep 22, 2025MTIII · Driver-only0PATRIOT CONCRETE PUMPING LLC 1314886773838E/MT
Aug 15, 2025MTIII · Driver-only0PATRIOT CONCRETE PUMPING LLC 1314886773838E/MT
Jul 31, 2023MTI · Full0PATRIOT CONCRETE PUMPING LLC 1314886795022C/MT
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ALLIANCE CONCRETE PUMPS INC1188836Oct 23, 2025Oct 23, 20251BC
PATRIOT CONCRETE PUMPING LLC1314886Jul 31, 2023Sep 22, 20253MT
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.
TRIPWAALLIANCE CONCRETE PUMPS INCOct 23, 2025Oct 23, 20251
773838EMTPATRIOT CONCRETE PUMPING LLCAug 15, 2025Sep 22, 20252
795022CMTPATRIOT CONCRETE PUMPING LLCJul 31, 2023Jul 31, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 6, 2026