Equipment unit · VIN-decoded · NHTSA vPIC

1981 Kenworth 548CH

2NKHLN9XXBM275502 · Truck · INCOMPLETE VEHICLE
Carriers run under1
33 mo
Inspections8
all-time
OOS inspections0
of 8
First seenOct 3, 2023
OK
Last seenJul 22, 2026
OK
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
2NKHLN9XXBM275502
Make
Kenworth
Model
548CH
Model year
1981
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 21, 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
2NK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
HLN9X

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1981 or 2011

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

North American serial sequence
275502

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
1981

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
548CH

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Oct 3, 2023 – Jul 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 22, 2026OKII · Walk-around0A & A TRUCKING INC 4260771NZM515/OK
Dec 8, 2025OKII · Walk-around0A & A TRUCKING INC 4260771NZM515/OK
Nov 25, 2025OKIII · Driver-only1A & A TRUCKING INC 4260771NZM575/OK
Nov 4, 2025OKIII · Driver-only0A & A TRUCKING INC 4260771NZM515/OK
Apr 10, 2025OKII · Walk-around0A & A TRUCKING INC 4260771NZM515/OK
Apr 2, 2025OKIII · Driver-only0A & A TRUCKING INC 4260771NZM515/OK
Nov 22, 2023OKII · Walk-around0A & A TRUCKING INC 4260771NYM232/OK
Oct 3, 2023OKIII · Driver-only0A & A TRUCKING INC 4260771NYM232/OK
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
A & A TRUCKING INC426077Oct 3, 2023Jul 22, 20268OK
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.
1NZM515OK1A & A TRUCKING INCApr 2, 2025Jul 22, 20265
1NZM575OKA & A TRUCKING INCNov 25, 2025Nov 25, 20251
1NYM232OKA & A TRUCKING INCOct 3, 2023Nov 22, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026