Equipment unit · VIN-decoded · NHTSA vPIC

2015 Peterbilt 579

1XPBD49X4FD269249 · Truck-Tractor · TRUCK
Carriers run under1
20 mo
Inspections15
all-time
OOS inspections4
of 15
First seenJul 14, 2023
CA
Last seenMar 6, 2025
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XPBD49X4FD269249
Make
Peterbilt
Model
579
Model year
2015
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 14, 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
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1985 or 2015

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

North American serial sequence
269249

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
2015

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 14, 2023 – Mar 6, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 6, 2025CAII · Walk-around1SOUTHBAY TRANSPORT INC 1837973ZP52062/CA
Feb 14, 2025CAII · Walk-around0SOUTHBAY TRANSPORT INC 1837973ZP52062/CA
Jan 29, 2025USI · Full2OOSSOUTHBAY TRANSPORT INC 1837973XP68290/CA
Dec 10, 2024USI · Full0SOUTHBAY TRANSPORT INC 1837973XP68290/CA
Nov 25, 2024AZII · Walk-around5OOSSOUTHBAY TRANSPORT INC 1837973XP68290/CA
Nov 7, 2024USII · Walk-around1SOUTHBAY TRANSPORT INC 1837973XP68290/CA
Oct 8, 2024USI · Full2SOUTHBAY TRANSPORT INC 1837973XP68290/CA
Sep 20, 2024CAIII · Driver-only0SOUTHBAY TRANSPORT INC 1837973XP68290/CA
Apr 24, 2024USII · Walk-around0SOUTHBAY TRANSPORT INC 1837973XP68290/CA
Mar 12, 2024AZII · Walk-around6SOUTHBAY TRANSPORT INC 1837973XP68290/CA
Jan 18, 2024AZII · Walk-around1SOUTHBAY TRANSPORT INC 1837973XP68290/CA
Dec 7, 2023AZI · Full10OOSSOUTHBAY TRANSPORT INC 1837973XP68290/CA
Nov 14, 2023CAIII · Driver-only1OOSSOUTHBAY TRANSPORT INC 1837973XP68290/CA
Oct 16, 2023CAI · Full1SOUTHBAY TRANSPORT INC 1837973XP68290/CA
Jul 14, 2023CAI · Full0SOUTHBAY TRANSPORT INC 1837973XP68290/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTHBAY TRANSPORT INC1837973Jul 14, 2023Mar 6, 202515CA
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.
ZP52062CASOUTHBAY TRANSPORT INCFeb 14, 2025Mar 6, 20252
XP68290CASOUTHBAY TRANSPORT INCJul 14, 2023Jan 29, 202513
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 14, 2026