Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBD49X2PD875537 · Truck-Tractor · TRUCK
Carriers run under4
21 mo
Inspections5
all-time
OOS inspections0
of 5
First seenSep 1, 2024
MT
Last seenJun 30, 2026
SC
Inspected under 4 different carriers in 21 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
1XPBD49X2PD875537
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
Jul 5, 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
2 · valid

Deterministic · position 9; calculated value 2.

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
875537

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 · Sep 1, 2024 – Jun 30, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 30, 2026SCIII · Driver-only1COMMONWEALTH TRANSPORTATION LLC 362350456957PF/VA
Jun 10, 2026OHIII · Driver-only1COMMONWEALTH TRANSPORTATION LLC 362350456957PF/NY
Apr 11, 2025KYIII · Driver-only2RS6 EXPRESS LLC 38944563015427/IN
Nov 27, 2024FLIII · Driver-only3EXPO UNITED LLC 3737207TNL298194/IL
Sep 1, 2024MTIII · Driver-only0GO2 CARRIERS INC 3237216P1184429/IL
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
COMMONWEALTH TRANSPORTATION LLC3623504Jun 10, 2026Jun 30, 20262AZ
RS6 EXPRESS LLC3894456Apr 11, 2025Apr 11, 20251IL
EXPO UNITED LLC3737207Nov 27, 2024Nov 27, 20241IL
GO2 CARRIERS INC3237216Sep 1, 2024Sep 1, 20241IL
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.
56957PFVA1COMMONWEALTH TRANSPORTATION LLCJun 30, 2026Jun 30, 20261
56957PFNYCOMMONWEALTH TRANSPORTATION LLCJun 10, 2026Jun 10, 20261
3015427INRS6 EXPRESS LLCApr 11, 2025Apr 11, 20251
TNL298194ILEXPO UNITED LLCNov 27, 2024Nov 27, 20241
P1184429ILGO2 CARRIERS INCSep 1, 2024Sep 1, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 5, 2026