Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBDP9X2PD861722 · Truck-Tractor · TRUCK
Carriers run under2
20 mo
Inspections5
all-time
OOS inspections0
of 5
First seenJan 15, 2025
FL
Last seenSep 20, 2026
NM
Inspected under 2 different carriers in 20 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
1XPBDP9X2PD861722
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
Jul 12, 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
2 · valid

Deterministic · position 9; calculated value 2.

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
861722

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 · Jan 15, 2025 – Sep 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 20, 2026NMIII · Driver-only0—WINFELD LLC 4335148ZP85728/CA
Jul 13, 2025ARI · Full0—NEW PRIME INC 370653KS5W/MO
May 9, 2025NMII · Walk-around0—NEW PRIME INC 370653KS5W/MO
Feb 9, 2025CAI · Full1—NEW PRIME INC 370653KS5W/MO
Jan 15, 2025FLIII · Driver-only0—NEW PRIME INC 370653KS5W/MO
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WINFELD LLC4335148Sep 20, 2026Sep 20, 20261SD
NEW PRIME INC3706Jan 15, 2025Jul 13, 20254MO
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.
ZP85728CA1WINFELD LLCSep 20, 2026 → Sep 20, 20261
53KS5WMO—NEW PRIME INCJan 15, 2025 → Jul 13, 20254
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026