Equipment unit · VIN-decoded · NHTSA vPIC

2022 Peterbilt 579

1XPBD49XXND777031 · Truck-Tractor · TRUCK
Carriers run under2
35 mo
Inspections11
all-time
OOS inspections0
of 11
First seenJul 7, 2023
KY
Last seenJun 29, 2026
IA
Inspected under 2 different carriers in 35 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
1XPBD49XXND777031
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 18, 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
X · valid

Deterministic · position 9; calculated value X.

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
777031

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 · Jul 7, 2023 – Jun 29, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 29, 2026IAIII · Driver-only1KNK TRUCKING LLC 721486428265/NE
Feb 24, 2026TXII · Walk-around1KNK TRUCKING LLC 721486428265/NE
Dec 18, 2025OKII · Walk-around2KNK TRUCKING LLC 721486428265/NE
May 30, 2025IAIII · Driver-only1KNK TRUCKING LLC 721486428265/NE
Apr 21, 2025NMII · Walk-around0KNK TRUCKING LLC 721486428265/NE
Mar 25, 2025KSIII · Driver-only2KNK TRUCKING LLC 721486428265/NE
Feb 28, 2025IAIII · Driver-only2KNK TRUCKING LLC 721486428265/NE
Dec 13, 2024NEII · Walk-around1KNK TRUCKING LLC 721486TEMP/NE
Dec 30, 2023WYIII · Driver-only0STEVENS TRANSPORT INC 79466R527226/TX
Nov 30, 2023SDIII · Driver-only1STEVENS TRANSPORT INC 79466R527226/TX
Jul 7, 2023KYIII · Driver-only1STEVENS TRANSPORT INC 79466R527226/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
KNK TRUCKING LLC721486Dec 13, 2024Jun 29, 20268NE
STEVENS TRANSPORT INC79466Jul 7, 2023Dec 30, 20233TX
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.
428265NE1KNK TRUCKING LLCFeb 28, 2025Jun 29, 20267
TEMPNEKNK TRUCKING LLCDec 13, 2024Dec 13, 20241
R527226TXSTEVENS TRANSPORT INCJul 7, 2023Dec 30, 20233
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026