Equipment unit · VIN-decoded · NHTSA vPIC

2006 Peterbilt 386

1XPHDB9X66D660661 · Truck-Tractor · TRUCK
Carriers run under2
22 mo
Inspections7
all-time
OOS inspections2
of 7
First seenSep 17, 2024
TX
Last seenJul 11, 2026
TX
Inspected under 2 different carriers in 22 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
1XPHDB9X66D660661
Make
Peterbilt
Model
386
Model year
2006
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
HDB9X

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
2006 or 2036

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

North American serial sequence
660661

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 · 352 decoded VINs at 100.0% prefix purity.

Model
386

Prefix basis · 352 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
2006

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 17, 2024 – Jul 11, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 11, 2026TXII · Walk-around0ALAMO TRANSIT COMPANY 19418981N07719/TX
Apr 14, 2026TXII · Walk-around2ALAMO TRANSIT COMPANY 19418981N07719/TX
Oct 17, 2025TXII · Walk-around0ALAMO TRANSIT COMPANY 19418981N07719/TX
Jul 11, 2025TXII · Walk-around1ALAMO TRANSIT COMPANY 19418981N07719/TX
Jun 25, 2025TXII · Walk-around4OOSALAMO TRANSIT COMPANY 19418981N07719/TX
Jan 31, 2025TXI · Full2ALAMO TRANSIT COMPANY 19418981N07719/TX
Sep 17, 2024TXI · Full11OOSHAIRPIN TRUCKING LLC 31059221N07719/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ALAMO TRANSIT COMPANY1941898Jan 31, 2025Jul 11, 20266TX
HAIRPIN TRUCKING LLC3105922Sep 17, 2024Sep 17, 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.
1N07719TX1ALAMO TRANSIT COMPANYJan 31, 2025Jul 11, 20266
1N07719TXHAIRPIN TRUCKING LLCSep 17, 2024Sep 17, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026