Equipment unit · VIN-decoded · NHTSA vPIC

2017 Peterbilt 579

1XPBD79XXHD392042 · Truck-Tractor · TRUCK
Carriers run under1
29 mo
Inspections6
all-time
OOS inspections1
of 6
First seenFeb 20, 2024
CA
Last seenJul 17, 2026
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XPBD79XXHD392042
Make
Peterbilt
Model
579
Model year
2017
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 29, 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
BD79X

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1987 or 2017

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

North American serial sequence
392042

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 · 166 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 166 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
2017

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
579

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

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 · Feb 20, 2024 – Jul 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 17, 2026CAII · Walk-around3SAPPHIRE MATERIALS INC 34333339G96728/CA
Mar 26, 2025CAI · Full0SAPPHIRE MATERIALS INC 34333339G96728/CA
Dec 26, 2024CAII · Walk-around0SAPPHIRE MATERIALS INC 34333339G96728/CA
Dec 6, 2024CAII · Walk-around5OOSSAPPHIRE MATERIALS INC 34333339G96728/CA
May 14, 2024CAII · Walk-around2SAPPHIRE MATERIALS INC 34333339F58365/CA
Feb 20, 2024CAI · Full0SAPPHIRE MATERIALS INC 34333339F58365/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SAPPHIRE MATERIALS INC3433333Feb 20, 2024Jul 17, 20266CA
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.
9G96728CA1SAPPHIRE MATERIALS INCDec 6, 2024Jul 17, 20264
9F58365CASAPPHIRE MATERIALS INCFeb 20, 2024May 14, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026