Equipment unit · VIN-decoded · NHTSA vPIC

2023 Mack Pinnacle

1M1PN4GY2PM011958 · Truck-Tractor · TRUCK
Carriers run under1
32 mo
Inspections7
all-time
OOS inspections3
of 7
First seenOct 27, 2023
CT
Last seenJun 30, 2026
CT
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1M1PN4GY2PM011958
Make
Mack
Model
Pinnacle
Model year
2023
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 23, 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
2 · valid

Deterministic · position 9; calculated value 2.

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
011958

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.

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
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
MACK

Observed directly for this VIN via NHTSA vPIC.

Observed model
Pinnacle

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 · Oct 27, 2023 – Jun 30, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 30, 2026CTI · Full5WEST STONE SUPPLY LLC 382275580929A/CT
Aug 7, 2025CTIII · Driver-only1WEST STONE SUPPLY LLC 382275572806A/CT
Jul 23, 2025CTIII · Driver-only2WEST STONE SUPPLY LLC 382275572806A/CT
Jun 26, 2025CTII · Walk-around4OOSWEST STONE SUPPLY LLC 382275572806A/CT
Apr 22, 2025CTII · Walk-around9OOSWEST STONE SUPPLY LLC 382275572806A/CT
Jul 2, 2024CTI · Full6OOSWEST STONE SUPPLY LLC 382275572806A/CT
Oct 27, 2023CTI · Full2WEST STONE SUPPLY LLC 382275572806A/CT
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WEST STONE SUPPLY LLC3822755Oct 27, 2023Jun 30, 20267CT
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.
80929ACT1WEST STONE SUPPLY LLCJun 30, 2026Jun 30, 20261
72806ACTWEST STONE SUPPLY LLCOct 27, 2023Aug 7, 20256
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026