Equipment unit · VIN-decoded · NHTSA vPIC

2022 Peterbilt 579

1XPBD49X6ND784784 · Truck-Tractor · TRUCK
Carriers run under2
25 mo
Inspections16
all-time
OOS inspections3
of 16
First seenApr 24, 2024
US
Last seenMay 26, 2026
CA
Inspected under 2 different carriers in 25 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
1XPBD49X6ND784784
Make
Peterbilt
Model
579
Model year
2022
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 14, 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
BD49X

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1992 or 2022

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

North American serial sequence
784784

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 · 26,166 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 26,166 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
2022

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 · Apr 24, 2024 – May 26, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 26, 2026CAI · Full3D RAMIREZ TRANSPORT INC 1405178ZP18586/CA
Apr 27, 2026CAI · Full2OOSD RAMIREZ TRANSPORT INC 1405178ZP18586/CA
Mar 19, 2026CAI · Full7OOSD RAMIREZ TRANSPORT INC 1405178ZP18586/CA
Feb 13, 2026CAIII · Driver-only0D RAMIREZ TRANSPORT INC 1405178ZP18586/CA
Aug 25, 2025CAII · Walk-around2OOSRMZ TRANSPORT INC 2798127ZP18586/CA
Jul 25, 2025CAIII · Driver-only0D RAMIREZ TRANSPORT INC 1405178ZP18586/CA
May 19, 2025CAI · Full0RMZ TRANSPORT INC 2798127ZP18586/CA
May 12, 2025CAIII · Driver-only1RMZ TRANSPORT INC 2798127ZP18586/CA
Mar 13, 2025CAIII · Driver-only1RMZ TRANSPORT INC 2798127ZP18586/CA
Jan 7, 2025CAIII · Driver-only1RMZ TRANSPORT INC 2798127ZP18586/CA
Nov 18, 2024CAIII · Driver-only0RMZ TRANSPORT INC 2798127ZP18586/CA
Aug 21, 2024CAI · Full1RMZ TRANSPORT INC 2798127ZP18586/CA
Aug 21, 2024CAIII · Driver-only0RMZ TRANSPORT INC 2798127ZP18586/CA
May 2, 2024USI · Full0RMZ TRANSPORT INC 2798127ZP18586/CA
Apr 25, 2024CAIII · Driver-only0RMZ TRANSPORT INC 2798127ZP18586/CA
Apr 24, 2024USI · Full1RMZ TRANSPORT INC 2798127ZP18586/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
D RAMIREZ TRANSPORT INC1405178Jul 25, 2025May 26, 20265CA
RMZ TRANSPORT INC2798127Apr 24, 2024Aug 25, 202511CA
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.
ZP18586CAD RAMIREZ TRANSPORT INCJul 25, 2025May 26, 20265
ZP18586CARMZ TRANSPORT INCApr 24, 2024Aug 25, 202511
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 14, 2026