Equipment unit · VIN-decoded · NHTSA vPIC

2025 Peterbilt 579

1XPBDP9X3SD739332 · Truck-Tractor · TRUCK
Carriers run under2
23 mo
Inspections14
all-time
OOS inspections1
of 14
First seenJul 8, 2024
NM
Last seenJun 23, 2026
CA
Inspected under 2 different carriers in 23 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
1XPBDP9X3SD739332
Make
Peterbilt
Model
579
Model year
2025
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 16, 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
BDP9X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1995 or 2025

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

North American serial sequence
739332

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 · 21,366 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 21,366 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
2025

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 8, 2024 – Jun 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 23, 2026CAI · Full0ACO LOGISTICS LLC 3842721AN00526/AZ
Jun 10, 2026UTIII · Driver-only0ACO LOGISTICS LLC 3842721AN00526/AZ
May 21, 2026KSIII · Driver-only0ACO LOGISTICS LLC 3842721AN00526/AZ
Feb 9, 2026NMII · Walk-around0SOUTHERLAND TRANSPORT INC 912915AN00526/AZ
Jan 26, 2026NMII · Walk-around0SOUTHERLAND TRANSPORT INC 912915AN00526/AZ
Jan 9, 2026AZII · Walk-around1OOSSOUTHERLAND TRANSPORT INC 912915AN00526/AZ
Jun 16, 2025NMII · Walk-around0SOUTHERLAND TRANSPORT INC 912915AN00526/AZ
Mar 31, 2025NMII · Walk-around0SOUTHERLAND TRANSPORT INC 912915AM55484/AZ
Mar 24, 2025NMIII · Driver-only0SOUTHERLAND TRANSPORT INC 912915AM55484/AZ
Mar 3, 2025NMIII · Driver-only0SOUTHERLAND TRANSPORT INC 912915AM55484/AZ
Feb 17, 2025NMIII · Driver-only0SOUTHERLAND TRANSPORT INC 912915AM55484/AZ
Dec 3, 2024CAII · Walk-around1SOUTHERLAND TRANSPORT INC 912915AM55484/AZ
Aug 12, 2024NMI · Full0SOUTHERLAND TRANSPORT INC 912915AM55484/AZ
Jul 8, 2024NMIII · Driver-only0SOUTHERLAND TRANSPORT INC 912915AM55484/AZ
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ACO LOGISTICS LLC3842721May 21, 2026Jun 23, 20263AZ
SOUTHERLAND TRANSPORT INC912915Jul 8, 2024Feb 9, 202611TN
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.
AN00526AZ1ACO LOGISTICS LLCMay 21, 2026Jun 23, 20263
AN00526AZSOUTHERLAND TRANSPORT INCJun 16, 2025Feb 9, 20264
AM55484AZSOUTHERLAND TRANSPORT INCJul 8, 2024Mar 31, 20257
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026