Equipment unit · VIN-decoded · NHTSA vPIC

1986 Peterbilt 359

1XP9DB9X1GN204650 · Truck-Tractor · TRUCK
Carriers run under2
30 mo
Inspections3
all-time
OOS inspections1
of 3
First seenNov 15, 2023
ME
Last seenMay 3, 2026
AR
Inspected under 2 different carriers in 30 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
1XP9DB9X1GN204650
Make
Peterbilt
Model
359
Model year
1986
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 30, 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
9DB9X

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1986 or 2016

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

North American serial sequence
204650

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
1986

Observed directly for this VIN via NHTSA vPIC.

Observed make
PETERBILT

Observed directly for this VIN via NHTSA vPIC.

Observed model
359

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Nov 15, 2023 – May 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 3, 2026ARIII · Driver-only0OHIO TRANSPORT CORPORATION 384170VA77729/OH
Jun 3, 2024SDII · Walk-around0WIEDMEYER EXPRESS INC 29276636106Z/WI
Nov 15, 2023MEII · Walk-around2OOSWIEDMEYER EXPRESS INC 29276636106Z/WI
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
OHIO TRANSPORT CORPORATION384170May 3, 2026May 3, 20261OH
WIEDMEYER EXPRESS INC292766Nov 15, 2023Jun 3, 20242WI
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.
VA77729OHOHIO TRANSPORT CORPORATIONMay 3, 2026May 3, 20261
36106ZWIWIEDMEYER EXPRESS INCNov 15, 2023Jun 3, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 30, 2026