Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBDP9X4PD863181 · Truck-Tractor · TRUCK
Carriers run under3
31 mo
Inspections6
all-time
OOS inspections3
of 6
First seenFeb 1, 2024
TN
Last seenSep 4, 2026
IN
Inspected under 3 different carriers in 31 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
1XPBDP9X4PD863181
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 29, 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
4 · valid

Deterministic · position 9; calculated value 4.

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
863181

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.

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 · Feb 1, 2024 – Sep 4, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 4, 2026INIII · Driver-only9—ROBBIE BEAVER 923065P1350558/IL
Feb 13, 2026ILIII · Driver-only0—ROBBIE BEAVER 923065P1313517/IL
Nov 7, 2025GAIII · Driver-only2OOSROBBIE BEAVER 923065P1313517/IL
Aug 25, 2025ILIII · Driver-only0—ROBBIE BEAVER 923065P1313517/IL
Jul 18, 2024TNII · Walk-around1OOSS & J POTASHNICK TRANSPORTATION INC 28181461KT6K/MO
Feb 1, 2024TNI · Full4OOSHARPERS HOT SHOT TRUCKING LLC 1958628R644234/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROBBIE BEAVER923065Aug 25, 2025Sep 4, 20264OK
S & J POTASHNICK TRANSPORTATION INC281814Jul 18, 2024Jul 18, 20241MO
HARPERS HOT SHOT TRUCKING LLC1958628Feb 1, 2024Feb 1, 20241TX
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.
P1350558IL1ROBBIE BEAVERSep 4, 2026 → Sep 4, 20261
P1313517IL—ROBBIE BEAVERAug 25, 2025 → Feb 13, 20263
61KT6KMO—S & J POTASHNICK TRANSPORTATION INCJul 18, 2024 → Jul 18, 20241
R644234TX—HARPERS HOT SHOT TRUCKING LLCFeb 1, 2024 → Feb 1, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026