Equipment unit · VIN-decoded · NHTSA vPIC

2019 Peterbilt 579

1XPBD49XXKD603472 · Truck-Tractor · TRUCK
Carriers run under3
19 mo
Inspections10
all-time
OOS inspections5
of 10
First seenAug 24, 2024
TX
Last seenMar 19, 2026
TX
Inspected under 3 different carriers in 19 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
1XPBD49XXKD603472
Make
Peterbilt
Model
579
Model year
2019
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 19, 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
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1989 or 2019

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

North American serial sequence
603472

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
2019

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 24, 2024 – Mar 19, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 19, 2026TXII · Walk-around1SILVER SKY TRUCKING LLC 4197660R788338/TX
Mar 12, 2026TXII · Walk-around2OOSSILVER SKY TRUCKING LLC 4197660R788338/TX
Mar 10, 2026TXII · Walk-around7OOSSILVER SKY TRUCKING LLC 4197660R788338/TX
Feb 4, 2026TXIII · Driver-only0SILVER SKY TRUCKING LLC 4197660R788338/TX
Dec 12, 2025TXII · Walk-around4OOSJOSE POLITRON 1292463R788338/TX
Dec 12, 2025TXII · Walk-around4OOSSILVER SKY TRUCKING LLC 4197660R788338/TX
Jun 4, 2025ARI · Full3OOSHC TRUCK LINES LLC 3155006R739839/TX
Jan 6, 2025TXII · Walk-around5SILVER SKY TRUCKING LLC 4197660R739839/TX
Nov 20, 2024KYI · Full3SILVER SKY TRUCKING LLC 4197660R739839/TX
Aug 24, 2024TXII · Walk-around0SILVER SKY TRUCKING LLC 4197660R739839/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SILVER SKY TRUCKING LLC4197660Aug 24, 2024Mar 19, 20268TX
JOSE POLITRON1292463Dec 12, 2025Dec 12, 20251TX
HC TRUCK LINES LLC3155006Jun 4, 2025Jun 4, 20251TX
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.
R788338TXSILVER SKY TRUCKING LLCDec 12, 2025Mar 19, 20265
R788338TXJOSE POLITRONDec 12, 2025Dec 12, 20251
R739839TXHC TRUCK LINES LLCJun 4, 2025Jun 4, 20251
R739839TXSILVER SKY TRUCKING LLCAug 24, 2024Jan 6, 20253
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026