Equipment unit · VIN-decoded · NHTSA vPIC

2020 Mack Pinnacle

1M1PN4GY9LM006783 · Truck-Tractor · TRUCK
Carriers run under2
40 mo
Inspections6
all-time
OOS inspections0
of 6
First seenJun 20, 2023
NC
Last seenOct 1, 2026
NC
Inspected under 2 different carriers in 40 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
1M1PN4GY9LM006783
Make
Mack
Model
Pinnacle
Model year
2020
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 29, 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
1M1

Deterministic · VIN positions 1–3.

Vehicle descriptor section
PN4GY

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1990 or 2020

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

North American serial sequence
006783

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
MACK

Prefix basis · 2,471 decoded VINs at 100.0% prefix purity.

Model
Pinnacle

Prefix basis · 2,471 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 · Jun 20, 2023 – Oct 1, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 1, 2026NCIII · Driver-only1—JOHN W KOONTZ 479848YA190243/NC
Feb 24, 2025NCII · Walk-around0—GR4LLC 984541ML9179/NC
Jan 31, 2024NCIII · Driver-only0—GR4LLC 984541ML9179/NC
Dec 20, 2023NCIII · Driver-only0—GR4LLC 984541ML9179/NC
Jun 21, 2023NCII · Walk-around0—GR4LLC 984541ML9179/NC
Jun 20, 2023NCIII · Driver-only0—GR4LLC 984541ML9179/NC
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JOHN W KOONTZ479848Oct 1, 2026Oct 1, 20261NC
GR4LLC984541Jun 20, 2023Feb 24, 20255NC
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.
YA190243NC1JOHN W KOONTZOct 1, 2026 → Oct 1, 20261
ML9179NC—GR4LLCJun 20, 2023 → Feb 24, 20255
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026