Equipment unit · VIN-decoded · NHTSA vPIC

2011 Peterbilt 365

1XPSD79X1BD128926 · Truck-Tractor · TRUCK
Carriers run under2
19 mo
Inspections9
all-time
OOS inspections0
of 9
First seenNov 25, 2024
TX
Last seenJun 5, 2026
TX
Inspected under 2 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
1XPSD79X1BD128926
Make
Peterbilt
Model
365
Model year
2011
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
SD79X

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1981 or 2011

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

North American serial sequence
128926

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 · 240 decoded VINs at 100.0% prefix purity.

Model
365

Prefix basis · 240 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
2011

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
365

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 25, 2024 – Jun 5, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 5, 2026TXII · Walk-around0WILHOIT BUILDERS OF TEXAS LLC 34999911N11837/TX
Feb 24, 2026TXII · Walk-around2WILHOIT BUILDERS OF TEXAS LLC 34999911N11837/TX
Feb 3, 2026TXII · Walk-around0WILHOIT BUILDERS OF TEXAS LLC 34999911N11837/TX
Nov 18, 2025TXII · Walk-around5WILHOIT BUILDERS OF TEXAS LLC 34999911N11837/TX
Nov 13, 2025TXI · Full4WILHOIT BUILDERS OF TEXAS LLC 34999911N11837/TX
Oct 18, 2025TXII · Walk-around2WILHOIT BUILDERS OF TEXAS LLC 34999911N11837/TX
Aug 18, 2025TXII · Walk-around4WILHOIT BUILDERS OF TEXAS LLC 34999911N40292/TX
Mar 6, 2025TXI · Full2WILHOIT BUILDERS OF TEXAS LLC 34999911N40292/TX
Nov 25, 2024TXI · Full2NPK FREIGHT LLC 31340631N40292/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WILHOIT BUILDERS OF TEXAS LLC3499991Mar 6, 2025Jun 5, 20268TX
NPK FREIGHT LLC3134063Nov 25, 2024Nov 25, 20241TX
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.
1N11837TXWILHOIT BUILDERS OF TEXAS LLCOct 18, 2025Jun 5, 20266
1N40292TXWILHOIT BUILDERS OF TEXAS LLCMar 6, 2025Aug 18, 20252
1N40292TXNPK FREIGHT LLCNov 25, 2024Nov 25, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026