Equipment unit · VIN-decoded · NHTSA vPIC

2006 Peterbilt 378

1NPFLBTX76N644430 · Truck · INCOMPLETE VEHICLE
Carriers run under2
33 mo
Inspections4
all-time
OOS inspections0
of 4
First seenJun 26, 2023
TN
Last seenMar 31, 2026
VA
Inspected under 2 different carriers in 33 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
1NPFLBTX76N644430
Make
Peterbilt
Model
378
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
FLBTX

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

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
644430

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 · 25 decoded VINs at 100.0% prefix purity.

Model
378

Prefix basis · 25 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
2006

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
378

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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jun 26, 2023 – Mar 31, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 31, 2026VAV · Vehicle-only0BUTLERS TOWING COMPANY INC 9443989470TW/VA
Jun 27, 2025TNI · Full0MITCHELL'S WEST NASHVILLE WRECKER SERVICE LLC 2410888D9356 HY/TN
Jun 11, 2024TNI · Full0MITCHELL'S WEST NASHVILLE WRECKER SERVICE LLC 2410888D9356HY/TN
Jun 26, 2023TNI · Full0MITCHELL'S WEST NASHVILLE WRECKER SERVICE LLC 2410888D9356HY/TN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BUTLERS TOWING COMPANY INC944398Mar 31, 2026Mar 31, 20261VA
MITCHELL'S WEST NASHVILLE WRECKER SERVICE LLC2410888Jun 26, 2023Jun 27, 20253TN
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.
9470TWVABUTLERS TOWING COMPANY INCMar 31, 2026Mar 31, 20261
D9356 HYTNMITCHELL'S WEST NASHVILLE WRECKER SERVICE LLCJun 27, 2025Jun 27, 20251
D9356HYTNMITCHELL'S WEST NASHVILLE WRECKER SERVICE LLCJun 26, 2023Jun 11, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026