Equipment unit · VIN-decoded · NHTSA vPIC

2015 Peterbilt 579

1XPBDP9X1FD284275 · Truck-Tractor · TRUCK
Carriers run under3
31 mo
Inspections6
all-time
OOS inspections2
of 6
First seenNov 2, 2023
OK
Last seenJun 4, 2026
OK
Inspected under 3 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
1XPBDP9X1FD284275
Make
Peterbilt
Model
579
Model year
2015
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 25, 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
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1985 or 2015

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

North American serial sequence
284275

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
2015

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 2, 2023 – Jun 4, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 4, 2026OKIII · Driver-only1WHETSTONE LAND AND CATTLE LLC 3671406734521/OK
May 30, 2026OKII · Walk-around4OOSWHETSTONE LAND AND CATTLE LLC 3671406734521/OK
Apr 27, 2026OKII · Walk-around0WHETSTONE LAND AND CATTLE LLC 3671406734521/OK
Apr 10, 2026OKII · Walk-around2WHETSTONE LAND AND CATTLE LLC 3671406734521/OK
Jun 12, 2025OKIII · Driver-only2OOST BAG HAY AND CATTLE LLC 4302895734521/OK
Nov 2, 2023OKII · Walk-around0NORTH AMERICAN BULK TRANSPORT INC 12543241011Z/WI
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WHETSTONE LAND AND CATTLE LLC3671406Apr 10, 2026Jun 4, 20264OK
T BAG HAY AND CATTLE LLC4302895Jun 12, 2025Jun 12, 20251OK
NORTH AMERICAN BULK TRANSPORT INC125432Nov 2, 2023Nov 2, 20231WI
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.
734521OKWHETSTONE LAND AND CATTLE LLCApr 10, 2026Jun 4, 20264
734521OKT BAG HAY AND CATTLE LLCJun 12, 2025Jun 12, 20251
41011ZWINORTH AMERICAN BULK TRANSPORT INCNov 2, 2023Nov 2, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026