Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth T880

1NKZLK0X3MJ445306 · Truck · INCOMPLETE VEHICLE
Carriers run under3
32 mo
Inspections16
all-time
OOS inspections1
of 16
First seenSep 14, 2023
CA
Last seenMay 13, 2026
CA
Inspected under 3 different carriers in 32 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
1NKZLK0X3MJ445306
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
ZLK0X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

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
445306

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 · 334 decoded VINs at 100.0% prefix purity.

Model
T880

Prefix basis · 334 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 · Sep 14, 2023 – May 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 13, 2026CAI · Full0A1 TRUCKING SERVICES INC 421234947559D3/CA
May 12, 2026CAII · Walk-around0A1 TRUCKING SERVICES INC 421234947559D3/CA
Apr 14, 2026CAII · Walk-around0A1 TRUCKING SERVICES INC 421234947559E3/CA
Apr 10, 2026CAII · Walk-around1A1 TRUCKING SERVICES INC 421234947559D3/CA
Aug 14, 2025CAIII · Driver-only0A1 TRUCKING SERVICES INC 421234947559D3/CA
Jun 17, 2025CAIII · Driver-only0A1 TRUCKING SERVICES INC 421234947559D3/CA
May 22, 2025CAII · Walk-around1A1 TRUCKING SERVICES INC 421234947559D3/CA
Mar 17, 2025CAII · Walk-around0A1 TRUCKING SVS INC 325123447559D3/CA
Mar 3, 2025CAIII · Driver-only0A1 TRUCKING SVS INC 325123447559D3/CA
Nov 19, 2024CAIII · Driver-only0KAMAL SAROOP SINGH 359690747559D3/CA
Jul 15, 2024CAI · Full9OOSKAMAL SAROOP SINGH 359690747559D3/CA
Apr 24, 2024CAI · Full1KAMAL SAROOP SINGH 359690747559D3/CA
Apr 16, 2024CAI · Full2KAMAL SAROOP SINGH 359690747559D3/CA
Apr 3, 2024CAI · Full3KAMAL SAROOP SINGH 359690747559D3/CA
Sep 18, 2023CAIII · Driver-only0KAMAL SAROOP SINGH 359690747559D3/CA
Sep 14, 2023CAI · Full2KAMAL SAROOP SINGH 359690747559D3/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
A1 TRUCKING SERVICES INC4212349May 22, 2025May 13, 20267CA
A1 TRUCKING SVS INC3251234Mar 3, 2025Mar 17, 20252CA
KAMAL SAROOP SINGH3596907Sep 14, 2023Nov 19, 20247CA
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.
47559D3CAA1 TRUCKING SERVICES INCMay 22, 2025May 13, 20266
47559E3CAA1 TRUCKING SERVICES INCApr 14, 2026Apr 14, 20261
47559D3CAA1 TRUCKING SVS INCMar 3, 2025Mar 17, 20252
47559D3CAKAMAL SAROOP SINGHSep 14, 2023Nov 19, 20247
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 14, 2026