Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBD49X8PD847287 · Truck-Tractor · TRUCK
Carriers run under2
27 mo
Inspections5
all-time
OOS inspections2
of 5
First seenJun 29, 2023
IL
Last seenSep 30, 2025
PA
Inspected under 2 different carriers in 27 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
1XPBD49X8PD847287
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
Jun 29, 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
8 · valid

Deterministic · position 9; calculated value 8.

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
847287

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
2023

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 · Jun 29, 2023 – Sep 30, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 30, 2025PAI · Full3SADHRA BROS LLC 2785837AH64538/PA
Jun 27, 2025TXII · Walk-around5OOSSADHRA BROS LLC 2785837AH64538/PA
Feb 15, 2025TNIII · Driver-only5OOSSADHRA BROS LLC 278583793299/PA
Dec 5, 2023MOIII · Driver-only0STALLION EXPRESS INC 741086K823456/AR
Jun 29, 2023ILII · Walk-around0STALLION EXPRESS INC 741086XMZD90/NJ
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SADHRA BROS LLC2785837Feb 15, 2025Sep 30, 20253PA
STALLION EXPRESS INC741086Jun 29, 2023Dec 5, 20232AR
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.
AH64538PASADHRA BROS LLCJun 27, 2025Sep 30, 20252
93299PASADHRA BROS LLCFeb 15, 2025Feb 15, 20251
K823456ARSTALLION EXPRESS INCDec 5, 2023Dec 5, 20231
XMZD90NJSTALLION EXPRESS INCJun 29, 2023Jun 29, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026