Equipment unit · VIN-decoded · NHTSA vPIC

2024 Peterbilt 579

1XPBD49X2RD639425 · Truck-Tractor · TRUCK
Carriers run under2
31 mo
Inspections11
all-time
OOS inspections1
of 11
First seenNov 5, 2023
OK
Last seenJun 3, 2026
WY
Inspected under 2 different carriers in 31 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
1XPBD49X2RD639425
Make
Peterbilt
Model
579
Model year
2024
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 18, 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
1994 or 2024

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

North American serial sequence
639425

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
2024

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 · Nov 5, 2023 – Jun 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 3, 2026WYIII · Driver-only1JB TRANSPORT INC 40770303886925/IN
Jun 2, 2026AZII · Walk-around4OOSJB TRANSPORT INC 40770303886925/IN
May 20, 2026WIIII · Driver-only1JB TRANSPORT INC 40770303886925/IN
Apr 14, 2026UTI · Full5JB TRANSPORT INC 40770303886925/IN
Mar 26, 2026OHIII · Driver-only2JB TRANSPORT INC 40770303886925/IN
Jun 13, 2024COIII · Driver-only7DOLPHINE TRAILER TRANSPORTATION LLC 3038624R695599/TX
Apr 28, 2024MTIII · Driver-only1DOLPHINE TRAILER TRANSPORTATION LLC 3038624R695599/TX
Apr 10, 2024TXII · Walk-around0DOLPHINE TRAILER TRANSPORTATION LLC 3038624R695599/TX
Apr 7, 2024LAIII · Driver-only0DOLPHINE TRAILER TRANSPORTATION LLC 3038624R695599/TX
Dec 29, 2023MTIII · Driver-only0DOLPHINE TRAILER TRANSPORTATION LLC 3038624R695599/TX
Nov 5, 2023OKIII · Driver-only1DOLPHINE TRAILER TRANSPORTATION LLC 3038624R695599/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JB TRANSPORT INC4077030Mar 26, 2026Jun 3, 20265IN
DOLPHINE TRAILER TRANSPORTATION LLC3038624Nov 5, 2023Jun 13, 20246TX
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.
3886925INJB TRANSPORT INCMar 26, 2026Jun 3, 20265
R695599TXDOLPHINE TRAILER TRANSPORTATION LLCNov 5, 2023Jun 13, 20246
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026