Equipment unit · VIN-decoded · NHTSA vPIC

2019 Peterbilt 579

1XPBDP9X4KD640955 · Truck-Tractor · TRUCK
Carriers run under3
31 mo
Inspections9
all-time
OOS inspections1
of 9
First seenNov 1, 2023
CA
Last seenJun 2, 2026
CA
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
1XPBDP9X4KD640955
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
640955

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
2019

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 · Nov 1, 2023 – Jun 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 2, 2026CAIII · Driver-only0RICH DOSS INC 168261ZP04876/CA
Feb 13, 2026CAI · Full0RICH DOSS INC 168261ZP04876/CA
Jan 21, 2026CAII · Walk-around0RICH DOSS INC 168261ZP04876/CA
Jun 12, 2025CAII · Walk-around2OOSRICH DOSS INC 168261ZP04876/CA
Oct 15, 2024CAI · Full0RICH DOSS INC 168261ZP04876/CA
Jul 19, 2024CAII · Walk-around0RICH DOSS INC 168261ZP04876/CA
May 15, 2024CAI · Full1F3 SYSTEMS INC 1384069ZP04876/CA
Feb 22, 2024NVIII · Driver-only0F3 SYSTEMS INC 1384069ZP04876/CA
Nov 1, 2023CAI · Full0SLAKEY BROTHERS INC 1432599F37683/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
RICH DOSS INC168261Jul 19, 2024Jun 2, 20266CA
F3 SYSTEMS INC1384069Feb 22, 2024May 15, 20242CA
SLAKEY BROTHERS INC143259Nov 1, 2023Nov 1, 20231CA
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.
ZP04876CARICH DOSS INCJul 19, 2024Jun 2, 20266
ZP04876CAF3 SYSTEMS INCFeb 22, 2024May 15, 20242
9F37683CASLAKEY BROTHERS INCNov 1, 2023Nov 1, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026