Equipment unit · NHTSA vPIC identity

2021 Kenworth T880

1XKZP4EX1MJ448588 · Truck-Tractor · TRUCK
Carriers run under2
23 mo
Inspections3
all-time
OOS inspections0
of 3
First seenSep 20, 2023
SD
Last seenAug 7, 2025
SD
Inspected under 2 different carriers in 23 months
These observations show where this VIN appeared, not who owned the vehicle. Sales, leases or owner-operator moves may explain carrier changes. A shared VIN alone is not a fraud finding. Compare dates and sources in the timeline below.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XKZP4EX1MJ448588
Make
Kenworth
Model
T880
Model year
2021
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 28, 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
1XK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
ZP4EX

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
448588

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 · 292 decoded VINs at 100.0% prefix purity.

Model
T880

Prefix basis · 292 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 · Sep 20, 2023 – Aug 7, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 7, 2025SDIV · Special3—DON NELSON 77950740J955/SD
Mar 19, 2025SDIV · Special2—TODD AND JILL SWENSON 7795274DJ955/SD
Sep 20, 2023SDIII · Driver-only0—TODD AND JILL SWENSON 7795274DJ955/SD
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DON NELSON779507Aug 7, 2025Aug 7, 20251NE
TODD AND JILL SWENSON779527Sep 20, 2023Mar 19, 20252SD
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.
40J955SD—DON NELSONAug 7, 2025 → Aug 7, 20251
4DJ955SD—TODD AND JILL SWENSONSep 20, 2023 → Mar 19, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 28, 2026