Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBD49X7PD885965 · Truck-Tractor · TRUCK
Carriers run under2
11 mo
Inspections5
all-time
OOS inspections1
of 5
First seenDec 13, 2024
CA
Last seenNov 27, 2025
NV
Inspected under 2 different carriers in 11 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
1XPBD49X7PD885965
Make
Peterbilt
Model
579
Model year
2023
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
BD49X

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1993 or 2023

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

North American serial sequence
885965

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
2023

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 · Dec 13, 2024 – Nov 27, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 27, 2025NVII · Walk-around1G & Y TRANS INC 3499210DF36GW/FL
May 20, 2025FLII · Walk-around1OOSCALIBER FREIGHT LLC 4101287DF36GW/FL
Feb 19, 2025MNIII · Driver-only2CALIBER FREIGHT LLC 4101287P1283095/IL
Jan 8, 2025CAIII · Driver-only1CALIBER FREIGHT LLC 4101287RP04755/WA
Dec 13, 2024CAII · Walk-around0CALIBER FREIGHT LLC 4101287RP04755/WA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
G & Y TRANS INC3499210Nov 27, 2025Nov 27, 20251IL
CALIBER FREIGHT LLC4101287Dec 13, 2024May 20, 20254IL
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.
DF36GWFLG & Y TRANS INCNov 27, 2025Nov 27, 20251
DF36GWFLCALIBER FREIGHT LLCMay 20, 2025May 20, 20251
P1283095ILCALIBER FREIGHT LLCFeb 19, 2025Feb 19, 20251
RP04755WACALIBER FREIGHT LLCDec 13, 2024Jan 8, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026