Equipment unit · VIN-decoded · NHTSA vPIC

2017 Peterbilt 579

1XPBDP9X6HD297736 · Truck-Tractor · TRUCK
Carriers run under2
10 mo
Inspections3
all-time
OOS inspections0
of 3
First seenAug 19, 2025
TX
Last seenJun 3, 2026
NE
Inspected under 2 different carriers in 10 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
1XPBDP9X6HD297736
Make
Peterbilt
Model
579
Model year
2017
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 31, 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
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1987 or 2017

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

North American serial sequence
297736

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 · Aug 19, 2025 – Jun 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 3, 2026NEIII · Driver-only2—PB EXPRESS INC 507092PXF4968/OH
Mar 12, 2026TXIII · Driver-only0—ALAMO TRANSIT COMPANY 19418981N82316/TX
Aug 19, 2025TXII · Walk-around3—ALAMO TRANSIT COMPANY 19418981N82316/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PB EXPRESS INC507092Jun 3, 2026Jun 3, 20261OH
ALAMO TRANSIT COMPANY1941898Aug 19, 2025Mar 12, 20262TX
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.
PXF4968OH—PB EXPRESS INCJun 3, 2026 → Jun 3, 20261
1N82316TX—ALAMO TRANSIT COMPANYAug 19, 2025 → Mar 12, 20262
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 31, 2026