Equipment unit · VIN-decoded · NHTSA vPIC

2003 Peterbilt 379

1NP5DB9X73N594656 · Truck-Tractor · INCOMPLETE VEHICLE
Carriers run under1
20 mo
Inspections5
all-time
OOS inspections1
of 5
First seenMay 10, 2024
UT
Last seenJan 27, 2026
UT
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NP5DB9X73N594656
Make
Peterbilt
Model
379
Model year
2003
Body class
Truck-Tractor
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 28, 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
5DB9X

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
2003 or 2033

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

North American serial sequence
594656

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 · 475 decoded VINs at 100.0% prefix purity.

Model
379

Prefix basis · 475 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
2003

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
379

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

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 · May 10, 2024 – Jan 27, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 27, 2026UTIII · Driver-only2TWIN BUTTE TRUCKING LLC 2804935AL1245/ID
Aug 14, 2025WAIII · Driver-only1TWIN BUTTE TRUCKING LLC 2804935AL1245/ID
Feb 28, 2025WAIII · Driver-only1TWIN BUTTE TRUCKING LLC 2804935AL1245/ID
Jun 24, 2024MTII · Walk-around3OOSTWIN BUTTE TRUCKING LLC 2804935AL1245/ID
May 10, 2024UTIII · Driver-only0TWIN BUTTE TRUCKING LLC 2804935AL1245/ID
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TWIN BUTTE TRUCKING LLC2804935May 10, 2024Jan 27, 20265ID
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.
AL1245IDTWIN BUTTE TRUCKING LLCMay 10, 2024Jan 27, 20265
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026