Equipment unit · VIN-decoded · NHTSA vPIC

1997 Peterbilt 379

1NP5DB9X7VN429564 · Truck-Tractor · INCOMPLETE VEHICLE
Carriers run under1
30 mo
Inspections8
all-time
OOS inspections1
of 8
First seenSep 18, 2023
AZ
Last seenMar 31, 2026
IL
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NP5DB9X7VN429564
Make
Peterbilt
Model
379
Model year
1997
Body class
Truck-Tractor
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 21, 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
1997 or 2027

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

North American serial sequence
429564

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
1997

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 · Sep 18, 2023 – Mar 31, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 31, 2026ILII · Walk-around3OOSAUTO EXPRESS CARRIERS INC 214365818/FL
Jan 9, 2026GAIII · Driver-only1AUTO EXPRESS CARRIERS INC 2143658DG80BC/FL
Nov 6, 2025KYIII · Driver-only1AUTO EXPRESS CARRIERS INC 2143658XB874F/FL
Jan 31, 2025NMIII · Driver-only0AUTO EXPRESS CARRIERS INC 2143658XB874F/FL
Oct 19, 2024AZIII · Driver-only0AUTO EXPRESS CARRIERS INC 2143658XB874F/FL
Apr 15, 2024FLII · Walk-around0AUTO EXPRESS CARRIERS INC 2143658XB874F/FL
Feb 16, 2024LAIII · Driver-only2AUTO EXPRESS CARRIERS INC 2143658XB874F/FL
Sep 18, 2023AZIII · Driver-only0AUTO EXPRESS CARRIERS INC 2143658AB39NN/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
AUTO EXPRESS CARRIERS INC2143658Sep 18, 2023Mar 31, 20268FL
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.
18FLAUTO EXPRESS CARRIERS INCMar 31, 2026Mar 31, 20261
DG80BCFLAUTO EXPRESS CARRIERS INCJan 9, 2026Jan 9, 20261
XB874FFLAUTO EXPRESS CARRIERS INCFeb 16, 2024Nov 6, 20255
AB39NNCAAUTO EXPRESS CARRIERS INCSep 18, 2023Sep 18, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026