Equipment unit · VIN-decoded · NHTSA vPIC

2011 Peterbilt 387

1XP7D49X5BD121126 · Truck-Tractor · TRUCK
Carriers run under2
25 mo
Inspections6
all-time
OOS inspections2
of 6
First seenAug 4, 2023
TX
Last seenSep 25, 2025
TX
Inspected under 2 different carriers in 25 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
1XP7D49X5BD121126
Make
Peterbilt
Model
387
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 24, 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
7D49X

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

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
121126

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 · 654 decoded VINs at 100.0% prefix purity.

Model
387

Prefix basis · 654 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
387

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 4, 2023 – Sep 25, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 25, 2025TXIII · Driver-only2LUIS ALFREDO BIASI 229977094BB3E/TA
Dec 28, 2023TXII · Walk-around1LUIS FELIPE ALVAREZ PULIDO 331688772AS8K/MX
Nov 15, 2023TXI · Full7OOSLUIS FELIPE ALVAREZ PULIDO 331688772AS8K/MX
Nov 6, 2023TXI · Full12OOSLUIS FELIPE ALVAREZ PULIDO 331688772AS8K/MX
Sep 15, 2023TXIII · Driver-only3LUIS FELIPE ALVAREZ PULIDO 331688772AS8K/MX
Aug 4, 2023TXI · Full2LUIS FELIPE ALVAREZ PULIDO 331688772AS8K/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
LUIS ALFREDO BIASI2299770Sep 25, 2025Sep 25, 20251TA
LUIS FELIPE ALVAREZ PULIDO3316887Aug 4, 2023Dec 28, 20235TA
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.
94BB3ETALUIS ALFREDO BIASISep 25, 2025Sep 25, 20251
72AS8KMXLUIS FELIPE ALVAREZ PULIDOSep 15, 2023Dec 28, 20234
72AS8KTXLUIS FELIPE ALVAREZ PULIDOAug 4, 2023Aug 4, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026