Equipment unit · VIN-decoded · NHTSA vPIC

2006 Peterbilt 379

1XP5DU9XX6D643800 · Truck-Tractor · TRUCK
Carriers run under2
8 mo
Inspections4
all-time
OOS inspections0
of 4
First seenAug 29, 2023
IA
Last seenApr 24, 2024
IA
Inspected under 2 different carriers in 8 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
1XP5DU9XX6D643800
Make
Peterbilt
Model
379
Model year
2006
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 12, 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
5DU9X

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

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
643800

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 · 492 decoded VINs at 100.0% prefix purity.

Model
379

Prefix basis · 492 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.

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 · Aug 29, 2023 – Apr 24, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 24, 2024IAIII · Driver-only1—KRISTOPHER QUAYLE 2103097VB5135/IA
Apr 12, 2024IAIII · Driver-only1—KRISTOPHER QUAYLE 2103097VB5135/IA
Mar 5, 2024IAIII · Driver-only2—THILGES BROS LLC 2468119VB5135/IA
Aug 29, 2023IAIII · Driver-only1—KRISTOPHER QUAYLE 2103097VB5135/IA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
KRISTOPHER QUAYLE2103097Aug 29, 2023Apr 24, 20243IA
THILGES BROS LLC2468119Mar 5, 2024Mar 5, 20241IA
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.
VB5135IA—KRISTOPHER QUAYLEAug 29, 2023 → Apr 24, 20243
VB5135IA—THILGES BROS LLCMar 5, 2024 → Mar 5, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026