Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBDP9XXPD810808 · Truck-Tractor · TRUCK
Carriers run under1
34 mo
Inspections8
all-time
OOS inspections1
of 8
First seenAug 23, 2023
TX
Last seenJun 2, 2026
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XPBDP9XXPD810808
Make
Peterbilt
Model
579
Model year
2023
Body class
Truck-Tractor
Vehicle type
TRUCK
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
1XP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
BDP9X

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

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
810808

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 · 21,366 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 21,366 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
2023

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
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

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 · Aug 23, 2023 – Jun 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 2, 2026TXII · Walk-around2ISABELLES TRANSPORT LLC 2894708R731914/TX
Jan 16, 2026TNIII · Driver-only0ISABELLES TRANSPORT LLC 2894708R731914/TX
Jan 15, 2026TNI · Full4OOSISABELLES TRANSPORT LLC 2894708R731914/TX
Dec 22, 2025LAII · Walk-around1ISABELLES TRANSPORT LLC 2894708R731914/TX
Apr 23, 2025LAIII · Driver-only1ISABELLES TRANSPORT LLC 2894708R731914/TX
Jan 2, 2025TXIII · Driver-only1ISABELLES TRANSPORT LLC 2894708R731914/TX
Jun 6, 2024TXII · Walk-around4ISABELLES TRANSPORT LLC 2894708R731914/TX
Aug 23, 2023TXII · Walk-around0ISABELLES TRANSPORT LLC 2894708R603158/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ISABELLES TRANSPORT LLC2894708Aug 23, 2023Jun 2, 20268TX
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.
R731914TXISABELLES TRANSPORT LLCJun 6, 2024Jun 2, 20267
R603158TXISABELLES TRANSPORT LLCAug 23, 2023Aug 23, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026