Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth T880

1NKZL40X7MJ456787 · Truck · INCOMPLETE VEHICLE
Carriers run under2
37 mo
Inspections8
all-time
OOS inspections1
of 8
First seenAug 18, 2023
AL
Last seenSep 15, 2026
AL
Inspected under 2 different carriers in 37 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
1NKZL40X7MJ456787
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 23, 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
ZL40X

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

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
456787

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 · 968 decoded VINs at 100.0% prefix purity.

Model
T880

Prefix basis · 968 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.

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 · Aug 18, 2023 – Sep 15, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 15, 2026ALIII · Driver-only0—PMTT INC 158782764A1HN1/AL
Jul 24, 2026ALIII · Driver-only0—PMTT INC 158782764A1HN1/AL
Jan 7, 2026ALIII · Driver-only0—PMTT INC 158782764A1HN1/AL
Apr 22, 2025ALII · Walk-around2—JB AMMONS CONSTRUCTION 15214495A0H9BA/AL
Feb 21, 2025ALII · Walk-around2OOSJB AMMONS CONSTRUCTION 15214495A0H9BA/AL
Oct 19, 2023ALIII · Driver-only0—JB AMMONS CONSTRUCTION 15214495A05TCT/AL
Oct 13, 2023ALII · Walk-around2—JB AMMONS CONSTRUCTION 15214495A05TCT/AL
Aug 18, 2023ALIII · Driver-only0—JB AMMONS CONSTRUCTION 15214495A05TCT/AL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PMTT INC1587827Jan 7, 2026Sep 15, 20263AL
JB AMMONS CONSTRUCTION1521449Aug 18, 2023Apr 22, 20255AL
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.
64A1HN1AL1PMTT INCJan 7, 2026 → Sep 15, 20263
5A0H9BAAL—JB AMMONS CONSTRUCTIONFeb 21, 2025 → Apr 22, 20252
5A05TCTAL—JB AMMONS CONSTRUCTIONAug 18, 2023 → Oct 19, 20233
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026