Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBD49X0PD841435 · Truck-Tractor · TRUCK
Carriers run under2
25 mo
Inspections6
all-time
OOS inspections2
of 6
First seenJun 23, 2023
OK
Last seenJul 10, 2025
WA
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
1XPBD49X0PD841435
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 24, 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
0 · valid

Deterministic · position 9; calculated value 0.

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
841435

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 23, 2023 – Jul 10, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 10, 2025WAII · Walk-around5OOSMIRI & PIRI TRANSPORT INC 3677382ZP58051/CA
May 5, 2025MTII · Walk-around2MIRI & PIRI TRANSPORT INC 3677382ZP58051/CA
Apr 24, 2025AZI · Full6MIRI & PIRI TRANSPORT INC 3677382ZP58051/CA
Oct 10, 2023CAII · Walk-around2L & L TRANSPORT SERVICES LLC 2039685YP66203/CA
Aug 29, 2023COIII · Driver-only1L & L TRANSPORT SERVICES LLC 2039685YP66203/CA
Jun 23, 2023OKII · Walk-around1OOSL & L TRANSPORT SERVICES LLC 2039685YP66203/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MIRI & PIRI TRANSPORT INC3677382Apr 24, 2025Jul 10, 20253CA
L & L TRANSPORT SERVICES LLC2039685Jun 23, 2023Oct 10, 20233CA
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.
ZP58051CAMIRI & PIRI TRANSPORT INCApr 24, 2025Jul 10, 20253
YP66203CAL & L TRANSPORT SERVICES LLCJun 23, 2023Oct 10, 20233
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026