Equipment unit · VIN-decoded · NHTSA vPIC

2006 Peterbilt 357

1NPALFTX06D644180 · Truck · INCOMPLETE VEHICLE
Carriers run under2
27 mo
Inspections4
all-time
OOS inspections2
of 4
First seenSep 19, 2023
AZ
Last seenDec 9, 2025
AZ
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
1NPALFTX06D644180
Make
Peterbilt
Model
357
Model year
2006
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 7, 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
1NP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
ALFTX

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
2006 or 2036

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

North American serial sequence
644180

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
2006

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
357

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Sep 19, 2023 – Dec 9, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 9, 2025AZI · Full5OOSVOLKS TRUCKING LLC 4201100VOLKS02/AZ
Aug 5, 2025AZII · Walk-around3OOSVOLKS TRUCKING LLC 4201100V0LKS02/AZ
Aug 15, 2024AZII · Walk-around0MOUNTAIN WEST LOGISTICS LLC 2936972HSXPRS1/AZ
Sep 19, 2023AZII · Walk-around1MOUNTAIN WEST LOGISTICS LLC 2936972HSXPRS1/AZ
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
VOLKS TRUCKING LLC4201100Aug 5, 2025Dec 9, 20252AZ
MOUNTAIN WEST LOGISTICS LLC2936972Sep 19, 2023Aug 15, 20242AZ
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.
VOLKS02AZVOLKS TRUCKING LLCDec 9, 2025Dec 9, 20251
V0LKS02AZVOLKS TRUCKING LLCAug 5, 2025Aug 5, 20251
HSXPRS1AZMOUNTAIN WEST LOGISTICS LLCSep 19, 2023Aug 15, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026