Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBD49X1PD832534 · Truck-Tractor · TRUCK
Carriers run under3
34 mo
Inspections10
all-time
OOS inspections2
of 10
First seenJan 13, 2024
NC
Last seenNov 5, 2026
NC
Inspected under 3 different carriers in 34 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
1XPBD49X1PD832534
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 21, 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
1993 or 2023

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

North American serial sequence
832534

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.

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 · Jan 13, 2024 – Nov 5, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 5, 2026NCII · Walk-around1OOSTRIPLE C TRANSPORT II INC 2239595W8886HY/TN
Sep 30, 2026NMII · Walk-around3—TRIPLE C TRANSPORT II INC 2239595W8886HY/TN
Jun 3, 2026NMIII · Driver-only1—TRIPLE C TRANSPORT II INC 2239595TEMP/TN
May 24, 2025OKI · Full1OOSWILLIAM DENNIS COOK INC 3587948N2512HY/TN
Mar 20, 2025INII · Walk-around1—WILLIAM DENNIS COOK INC 3587948N2512HY/TN
Feb 18, 2025ALIII · Driver-only1—UNIVERSAL LOGISTICS SERVICES INC 839281N2512HY/TN
Jan 7, 2025NMIII · Driver-only0—WILLIAM DENNIS COOK INC 3587948N2512HY/TN
Dec 5, 2024NMII · Walk-around0—WILLIAM DENNIS COOK INC 3587948N2512HY/TN
Sep 19, 2024NCI · Full0—WILLIAM DENNIS COOK INC 3587948N2512HY/TN
Jan 13, 2024NCI · Full0—WILLIAM DENNIS COOK INC 3587948N2512HY/TN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRIPLE C TRANSPORT II INC2239595Jun 3, 2026Nov 5, 20263TN
WILLIAM DENNIS COOK INC3587948Jan 13, 2024May 24, 20256TN
UNIVERSAL LOGISTICS SERVICES INC839281Feb 18, 2025Feb 18, 20251TN
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.
W8886HYTN1TRIPLE C TRANSPORT II INCSep 30, 2026 → Nov 5, 20262
TEMPTN—TRIPLE C TRANSPORT II INCJun 3, 2026 → Jun 3, 20261
N2512HYTN—WILLIAM DENNIS COOK INCJan 13, 2024 → May 24, 20256
N2512HYTN—UNIVERSAL LOGISTICS SERVICES INCFeb 18, 2025 → Feb 18, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026