Equipment unit · VIN-decoded · NHTSA vPIC

2024 Peterbilt 579

1XPBD49X7RD638111 · Truck-Tractor · TRUCK
Carriers run under2
20 mo
Inspections9
all-time
OOS inspections4
of 9
First seenOct 9, 2024
IN
Last seenJun 25, 2026
TX
Inspected under 2 different carriers in 20 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
1XPBD49X7RD638111
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
7 · valid

Deterministic · position 9; calculated value 7.

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
638111

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 · Oct 9, 2024 – Jun 25, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 25, 2026TXII · Walk-around2OOSFORCE TRANSPORTATION INC 3176162P1358523/IL
May 15, 2026TNIII · Driver-only1FORCE TRANSPORTATION INC 3176162P1339536/IL
Mar 21, 2026TXII · Walk-around0FORCE TRANSPORTATION INC 3176162P1339536/IL
Mar 4, 2026OHIII · Driver-only0FORCE TRANSPORTATION INC 3176162-TEMPORARY-/IL
Jan 15, 2026IAII · Walk-around6FORCE TRANSPORTATION INC 3176162P 1309739/IL
May 29, 2025TNIII · Driver-only2OOSEXPO UNITED LLC 3737207APPLIED/IL
Dec 27, 2024AZII · Walk-around7OOSEXPO UNITED LLC 3737207TNL297418/IL
Dec 22, 2024NEIII · Driver-only0EXPO UNITED LLC 3737207P1207261/IL
Oct 9, 2024INI · Full5OOSEXPO UNITED LLC 3737207APPLIED/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
FORCE TRANSPORTATION INC3176162Jan 15, 2026Jun 25, 20265IA
EXPO UNITED LLC3737207Oct 9, 2024May 29, 20254IL
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.
P1358523IL1FORCE TRANSPORTATION INCJun 25, 2026Jun 25, 20261
P1339536ILFORCE TRANSPORTATION INCMar 21, 2026May 15, 20262
-TEMPORARY-ILFORCE TRANSPORTATION INCMar 4, 2026Mar 4, 20261
P 1309739ILFORCE TRANSPORTATION INCJan 15, 2026Jan 15, 20261
APPLIEDILEXPO UNITED LLCOct 9, 2024May 29, 20252
TNL297418ILEXPO UNITED LLCDec 27, 2024Dec 27, 20241
P1207261ILEXPO UNITED LLCDec 22, 2024Dec 22, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026