Equipment unit · VIN-decoded · NHTSA vPIC

1D9FS4439PC688019

Not yet decoded
Carriers run under2
27 mo
Inspections2
all-time
OOS inspections1
of 2
First seenFeb 17, 2024
MN
Last seenMay 21, 2026
MN
Inspected under 2 different carriers in 27 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1D9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
FS443

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1993 or 2023

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

North American serial sequence
688019

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
DOUGLAS HOLDING LLC

Prefix basis · 49 decoded VINs at 100.0% prefix purity.

Model
Douglas Holding LLC

Prefix basis · 49 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.

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 · Feb 17, 2024 – May 21, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 21, 2026MNIII · Driver-only1WR WHITESIDE EQUIPMENT INC 12876336442STZ/MN
Feb 17, 2024MNII · Walk-around3OOSDIFF'S TRUCKING LLC 24605526443STZ/MN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WR WHITESIDE EQUIPMENT INC1287633May 21, 2026May 21, 20261MN
DIFF'S TRUCKING LLC2460552Feb 17, 2024Feb 17, 20241MN
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.
6442STZMNWR WHITESIDE EQUIPMENT INCMay 21, 2026May 21, 20261
6443STZMNDIFF'S TRUCKING LLCFeb 17, 2024Feb 17, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC