Equipment unit · VIN-decoded · NHTSA vPIC

2011 Peterbilt 386

1XPHD49X8BD111159 · Truck-Tractor · TRUCK
Carriers run under2
19 mo
Inspections10
all-time
OOS inspections4
of 10
First seenSep 15, 2023
CA
Last seenApr 10, 2025
CA
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
1XPHD49X8BD111159
Make
Peterbilt
Model
386
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
HD49X

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

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
111159

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 · 3,252 decoded VINs at 100.0% prefix purity.

Model
386

Prefix basis · 3,252 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
386

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 · Sep 15, 2023 – Apr 10, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 10, 2025CAI · Full3ALVARENGA FREIGHT INC 32239969G04143/CA
Apr 9, 2025CAI · Full2ALVARENGA FREIGHT INC 32239969G04143/CA
Nov 26, 2024CAII · Walk-around1OOSALVARENGA FREIGHT INC 32239969G04143/CA
Oct 7, 2024CAI · Full4OOSALVARENGA FREIGHT INC 32239969G01413/CA
Sep 23, 2024CAII · Walk-around2ALVARENGA FREIGHT INC 32239969G04143/CA
May 31, 2024CAI · Full4OOSALVARENGA FREIGHT INC 32239969G04143/CA
Feb 1, 2024CAII · Walk-around2OOSALVARENGA TRANSPORT LLC 16467629G04143/CA
Jan 22, 2024CAII · Walk-around1ALVARENGA TRANSPORT LLC 16467629G04143/CA
Oct 12, 2023CAIII · Driver-only0ALVARENGA TRANSPORT LLC 16467629G04143/CA
Sep 15, 2023CAII · Walk-around0ALVARENGA TRANSPORT LLC 16467629G04143/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ALVARENGA FREIGHT INC3223996May 31, 2024Apr 10, 20256CA
ALVARENGA TRANSPORT LLC1646762Sep 15, 2023Feb 1, 20244CA
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.
9G04143CAALVARENGA FREIGHT INCMay 31, 2024Apr 10, 20255
9G01413CAALVARENGA FREIGHT INCOct 7, 2024Oct 7, 20241
9G04143CAALVARENGA TRANSPORT LLCSep 15, 2023Feb 1, 20244
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026