Equipment unit · VIN-decoded · NHTSA vPIC

Peterbilt 579

1NPBGGGG60D455534 · Incomplete - Glider · INCOMPLETE VEHICLE
Carriers run under2
26 mo
Inspections8
all-time
OOS inspections3
of 8
First seenAug 17, 2023
TX
Last seenOct 22, 2025
OH
Inspected under 2 different carriers in 26 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
1NPBGGGG60D455534
Make
Peterbilt
Model
579
Model year
Body class
Incomplete - Glider
Vehicle type
INCOMPLETE VEHICLE
GVWR
Not decoded
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
1NP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
BGGGG

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
Not established

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

North American serial sequence
455534

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 · 288 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 288 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
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
579

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Incomplete - Glider

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

Not established

  • model year
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Aug 17, 2023 – Oct 22, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 22, 2025OHI · Full1KARAS EXPRESS LLC 241387819KR4F/MO
Jul 7, 2025MOIII · Driver-only0KARAS EXPRESS LLC 241387819KR4F/MO
Mar 1, 2025MOII · Walk-around0KARAS EXPRESS LLC 241387819KR4F/MO
Feb 21, 2024TXII · Walk-around3OOSMEZZANO CARRIERS LLC 37248811M31507/TX
Dec 7, 2023TXII · Walk-around1OOSMEZZANO CARRIERS LLC 37248811M31507/TX
Nov 14, 2023TXII · Walk-around3OOSMEZZANO CARRIERS LLC 37248811M31507/TX
Oct 21, 2023TXII · Walk-around1MEZZANO CARRIERS LLC 37248811M31507/TX
Aug 17, 2023TXII · Walk-around0MEZZANO CARRIERS LLC 37248811M31507/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
KARAS EXPRESS LLC2413878Mar 1, 2025Oct 22, 20253MO
MEZZANO CARRIERS LLC3724881Aug 17, 2023Feb 21, 20245TX
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.
19KR4FMOKARAS EXPRESS LLCMar 1, 2025Oct 22, 20253
1M31507TXMEZZANO CARRIERS LLCAug 17, 2023Feb 21, 20245
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026