Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 537

2NPMHJ7X0PM866385 · Truck · INCOMPLETE VEHICLE
Carriers run under1
32 mo
Inspections9
all-time
OOS inspections2
of 9
First seenOct 26, 2023
CA
Last seenJun 25, 2026
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
2NPMHJ7X0PM866385
Make
Peterbilt
Model
537
Model year
2023
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 7: 26,001 - 33,000 lb (11,794 - 14,969 kg)
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
2NP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
MHJ7X

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1993 or 2023

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

North American serial sequence
866385

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
PETERBILT

Prefix basis · 153 decoded VINs at 98.7% prefix purity.

Model
537

Prefix basis · 153 decoded VINs at 98.7% 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
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
537

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 7: 26,001 - 33,000 lb (11,794 - 14,969 kg)

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 · Oct 26, 2023 – Jun 25, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 25, 2026CAI · Full2OOSSAMUEL J PIAZZA & SON INC 39131487933R3/CA
Sep 19, 2025CAII · Walk-around1SAMUEL J PIAZZA & SON INC 39131487933R3/CA
Aug 15, 2025CAII · Walk-around3OOSSAMUEL J PIAZZA & SON INC 39131487933R3/CA
Jul 17, 2025CAIII · Driver-only0SAMUEL J PIAZZA & SON INC 39131487933R3/CA
Feb 25, 2025CAI · Full0SAMUEL J PIAZZA & SON INC 39131487933R3/CA
Aug 13, 2024CAI · Full0SAMUEL J PIAZZA & SON INC 39131487933R3/CA
Aug 6, 2024CAI · Full1SAMUEL J PIAZZA & SON INC 39131487933R3/CA
Nov 27, 2023CAI · Full0SAMUEL J PIAZZA & SON INC 39131487933R3/CA
Oct 26, 2023CAI · Full0SAMUEL J PIAZZA & SON INC 39131487933R3/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SAMUEL J PIAZZA & SON INC391314Oct 26, 2023Jun 25, 20269CA
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.
87933R3CA1SAMUEL J PIAZZA & SON INCOct 26, 2023Jun 25, 20269
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026