Equipment unit · VIN-decoded · NHTSA vPIC

2017 Peterbilt 579

1XPBDP9X3HD434180 · Truck-Tractor · TRUCK
Carriers run under3
37 mo
Inspections6
all-time
OOS inspections4
of 6
First seenJun 14, 2023
KY
Last seenJul 3, 2026
TX
Inspected under 3 different carriers in 37 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
1XPBDP9X3HD434180
Make
Peterbilt
Model
579
Model year
2017
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 29, 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
BDP9X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1987 or 2017

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

North American serial sequence
434180

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 · 21,366 decoded VINs at 100.0% prefix purity.

Model
579

Prefix basis · 21,366 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
2017

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 · Jun 14, 2023 – Jul 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 3, 2026TXII · Walk-around4OOSMISSION PETROLEUM CARRIERS INC 2329371N77631/TX
Dec 5, 2025TXII · Walk-around1OOSDIAMOND B OPERATING LLC 2120653R762413/TX
Dec 8, 2024TXII · Walk-around1DIAMOND B OPERATING LLC 21206531N25692/TX
Feb 18, 2024TXII · Walk-around3OOSDIAMOND B OPERATING LLC 2120653R636087/TX
Oct 17, 2023TXII · Walk-around3OOSDIAMOND B OPERATING LLC 2120653R636087/TX
Jun 14, 2023KYIII · Driver-only3DECKER TRUCK LINE INC 53824VC4669/IA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MISSION PETROLEUM CARRIERS INC232937Jul 3, 2026Jul 3, 20261TX
DIAMOND B OPERATING LLC2120653Oct 17, 2023Dec 5, 20254TX
DECKER TRUCK LINE INC53824Jun 14, 2023Jun 14, 20231IA
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.
1N77631TX1MISSION PETROLEUM CARRIERS INCJul 3, 2026Jul 3, 20261
R762413TXDIAMOND B OPERATING LLCDec 5, 2025Dec 5, 20251
1N25692TXDIAMOND B OPERATING LLCDec 8, 2024Dec 8, 20241
R636087TXDIAMOND B OPERATING LLCOct 17, 2023Feb 18, 20242
VC4669IADECKER TRUCK LINE INCJun 14, 2023Jun 14, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026