Equipment unit · VIN-decoded · NHTSA vPIC

2008 Peterbilt 386

1XPHD49X78N756307 · Truck-Tractor · TRUCK
Carriers run under2
6 mo
Inspections3
all-time
OOS inspections2
of 3
First seenAug 16, 2024
IN
Last seenFeb 21, 2025
NM
Inspected under 2 different carriers in 6 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
1XPHD49X78N756307
Make
Peterbilt
Model
386
Model year
2008
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Aug 1, 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
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
2008 or 2038

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

North American serial sequence
756307

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
2008

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 · Aug 16, 2024 – Feb 21, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 21, 2025NMII · Walk-around3OOSSPARKS & SON TRUCKING LLC 395619966364Z/WI
Feb 12, 2025NMIII · Driver-only0SPARKS & SON TRUCKING LLC 395619966364Z/WI
Aug 16, 2024INII · Walk-around3OOSHILLTOP TRANSPORT LLC 211807480521Z/WI
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SPARKS & SON TRUCKING LLC3956199Feb 12, 2025Feb 21, 20252WI
HILLTOP TRANSPORT LLC2118074Aug 16, 2024Aug 16, 20241WI
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.
66364ZWISPARKS & SON TRUCKING LLCFeb 12, 2025Feb 21, 20252
80521ZWIHILLTOP TRANSPORT LLCAug 16, 2024Aug 16, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 1, 2026