Equipment unit · VIN-decoded · NHTSA vPIC

2016 Peterbilt 579

1XPBD49X1GD345267 · Truck-Tractor · TRUCK
Carriers run under2
20 mo
Inspections5
all-time
OOS inspections2
of 5
First seenJul 9, 2023
CA
Last seenMar 13, 2025
AZ
Inspected under 2 different carriers in 20 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
1XPBD49X1GD345267
Make
Peterbilt
Model
579
Model year
2016
Body class
Truck-Tractor
Vehicle type
TRUCK
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
1XP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
BD49X

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1986 or 2016

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

North American serial sequence
345267

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 · 26,166 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 26,166 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
2016

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 · Jul 9, 2023 – Mar 13, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 13, 2025AZIII · Driver-only12 GENERATIONS TRANSPORT CORP 4050670ZP19489/AZ
Jan 7, 2025CAI · Full1OOS2 GENERATIONS TRANSPORT CORP 4050670ZP19489/CA
Aug 10, 2023CAI · Full02 GENERATIONS TRANSPORT CORP 4050670YP71931/CA
Aug 10, 2023CAI · Full1OOS2 GENERATIONS TRANSPORT CORP 4050670YP71931/CA
Jul 9, 2023CAII · Walk-around1ALGONZA TRANSPORT LLC 2918016YP71931/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
2 GENERATIONS TRANSPORT CORP4050670Aug 10, 2023Mar 13, 20254CA
ALGONZA TRANSPORT LLC2918016Jul 9, 2023Jul 9, 20231CA
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.
ZP19489AZ2 GENERATIONS TRANSPORT CORPMar 13, 2025Mar 13, 20251
ZP19489CA2 GENERATIONS TRANSPORT CORPJan 7, 2025Jan 7, 20251
YP71931CA2 GENERATIONS TRANSPORT CORPAug 10, 2023Aug 10, 20232
YP71931CAALGONZA TRANSPORT LLCJul 9, 2023Jul 9, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026