Equipment unit · VIN-decoded · NHTSA vPIC

2019 Peterbilt 579

1XPBDP9X4KD634931 · Truck-Tractor · TRUCK
Carriers run under2
34 mo
Inspections9
all-time
OOS inspections0
of 9
First seenJul 5, 2023
CO
Last seenMay 20, 2026
TX
Inspected under 2 different carriers in 34 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
1XPBDP9X4KD634931
Make
Peterbilt
Model
579
Model year
2019
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 19, 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
1989 or 2019

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

North American serial sequence
634931

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 · Jul 5, 2023 – May 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 20, 2026TXII · Walk-around4—ARIAS LLC 4089731AN02478/AZ
Apr 19, 2026OKIII · Driver-only0—ARIAS LLC 4089731AN02478/AZ
Aug 17, 2025NMII · Walk-around1—ARIAS LLC 4089731AM58187/AZ
Apr 21, 2025TXII · Walk-around0—ARIAS LLC 408973138966606/AZ
Aug 6, 2024TXI · Full1—ARIAS LLC 40897315862K53/TX
Dec 27, 2023UTIII · Driver-only0—GURNEY TRUCKING INC 384990A032515/UT
Jul 19, 2023UTI · Full0—GURNEY TRUCKING INC 384990A032515/UT
Jul 17, 2023UTIII · Driver-only0—GURNEY TRUCKING INC 384990A032515/UT
Jul 5, 2023COIII · Driver-only1—GURNEY TRUCKING INC 384990A032515/UT
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ARIAS LLC4089731Aug 6, 2024May 20, 20265AZ
GURNEY TRUCKING INC384990Jul 5, 2023Dec 27, 20234UT
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.
AN02478AZ—ARIAS LLCApr 19, 2026 → May 20, 20262
AM58187AZ—ARIAS LLCAug 17, 2025 → Aug 17, 20251
38966606AZ—ARIAS LLCApr 21, 2025 → Apr 21, 20251
5862K53TX—ARIAS LLCAug 6, 2024 → Aug 6, 20241
A032515UT—GURNEY TRUCKING INCJul 5, 2023 → Dec 27, 20234
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026