Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth T880

1NKZXPTX6MJ431641 · Truck · INCOMPLETE VEHICLE
Carriers run under1
28 mo
Inspections18
all-time
OOS inspections2
of 18
First seenJul 13, 2023
NC
Last seenNov 21, 2025
NC
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NKZXPTX6MJ431641
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
Jun 14, 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
ZXPTX

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

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
431641

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 · 2,049 decoded VINs at 100.0% prefix purity.

Model
T880

Prefix basis · 2,049 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 13, 2023 – Nov 21, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 21, 2025NCIII · Driver-only0WM R CURTIS INC 1579441YA152156/NC
Oct 23, 2025NCIII · Driver-only0WM R CURTIS INC 1579441YA152156/NC
Oct 8, 2025NCIII · Driver-only0WM R CURTIS INC 1579441YA152156/NC
Sep 17, 2025NCII · Walk-around0WM R CURTIS INC 1579441YA152156/NC
Apr 24, 2025NCIII · Driver-only0WM R CURTIS INC 1579441YA152156/NC
Feb 11, 2025NCIII · Driver-only0WM R CURTIS INC 1579441YA152156/NC
Jan 15, 2025NCIII · Driver-only0WM R CURTIS INC 1579441YA152156/NC
Jan 9, 2025NCIII · Driver-only0WM R CURTIS INC 1579441YA152156/NC
Sep 24, 2024NCII · Walk-around0WM R CURTIS INC 1579441YA152156/NC
Aug 27, 2024NCIII · Driver-only0WM R CURTIS INC 1579441YA152156/NC
Aug 20, 2024NCIII · Driver-only0WM R CURTIS INC 1579441YA152156/NC
Jul 10, 2024NCII · Walk-around1OOSWM R CURTIS INC 1579441YA152156/NC
Jun 3, 2024NCII · Walk-around0WM R CURTIS INC 1579441YA152156/NC
Apr 17, 2024NCII · Walk-around0WM R CURTIS INC 1579441YA152156/NC
Mar 29, 2024NCII · Walk-around0WM R CURTIS INC 1579441YA152156/NC
Oct 31, 2023NCII · Walk-around0WM R CURTIS INC 1579441YA152156/NC
Sep 25, 2023NCII · Walk-around1OOSWM R CURTIS INC 1579441YA152156/NC
Jul 13, 2023NCIII · Driver-only0WM R CURTIS INC 1579441YA152156/MI
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WM R CURTIS INC1579441Jul 13, 2023Nov 21, 202518MI
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.
YA152156NCWM R CURTIS INCSep 25, 2023Nov 21, 202517
YA152156MIWM R CURTIS INCJul 13, 2023Jul 13, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 14, 2026