Equipment unit · VIN-decoded · NHTSA vPIC

2024 Peterbilt 579

1XPBD49X0RD638211 · Truck-Tractor · TRUCK
Carriers run under6
24 mo
Inspections8
all-time
OOS inspections3
of 8
First seenAug 2, 2024
IL
Last seenAug 12, 2026
MD
Inspected under 6 different carriers in 24 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
1XPBD49X0RD638211
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 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
0 · valid

Deterministic · position 9; calculated value 0.

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
638211

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 · Aug 2, 2024 – Aug 12, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 12, 2026MDIII · Driver-only0J HEAVY HAULING LLC 4085596P1300057/IL
Apr 21, 2026COIII · Driver-only0AJ LINERS LLC 3741602P1300057/IL
Mar 7, 2026NCII · Walk-around0STEPPE VOYAGER LIMITED 4371106P130057/IL
Jan 22, 2026NMII · Walk-around2OOSSTEPPE VOYAGER LIMITED 4371106P1300057/IL
Jan 7, 2026MOII · Walk-around3OOSJUSTRIDERS LLC 4298934P1300057/IL
Dec 22, 2025ORI · Full5OOSJUSTRIDERS LLC 4298934P1300057/IL
Jun 11, 2025WAIII · Driver-only3GAMAR TRANSPORTATION GROUP LLC 3378979TEMP/IL
Aug 2, 2024ILIII · Driver-only1VIKING TRANSPORT LLC 3597375P1227634/IL
03

Carriers this unit has run under

6 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
J HEAVY HAULING LLC4085596Aug 12, 2026Aug 12, 20261IN
AJ LINERS LLC3741602Apr 21, 2026Apr 21, 20261OH
STEPPE VOYAGER LIMITED4371106Jan 22, 2026Mar 7, 20262OH
JUSTRIDERS LLC4298934Dec 22, 2025Jan 7, 20262TN
GAMAR TRANSPORTATION GROUP LLC3378979Jun 11, 2025Jun 11, 20251MO
VIKING TRANSPORT LLC3597375Aug 2, 2024Aug 2, 20241MI
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.
P1300057IL1J HEAVY HAULING LLCAug 12, 2026Aug 12, 20261
P1300057ILAJ LINERS LLCApr 21, 2026Apr 21, 20261
P130057ILSTEPPE VOYAGER LIMITEDMar 7, 2026Mar 7, 20261
P1300057ILSTEPPE VOYAGER LIMITEDJan 22, 2026Jan 22, 20261
P1300057ILJUSTRIDERS LLCDec 22, 2025Jan 7, 20262
TEMPILGAMAR TRANSPORTATION GROUP LLCJun 11, 2025Jun 11, 20251
P1227634ILVIKING TRANSPORT LLCAug 2, 2024Aug 2, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026