Equipment unit · VIN-decoded · NHTSA vPIC

2022 Mack Pinnacle

1M1PN4GY6NM009370 · Truck-Tractor · TRUCK
Carriers run under2
36 mo
Inspections3
all-time
OOS inspections3
of 3
First seenJul 14, 2023
TX
Last seenJul 23, 2026
TX
Inspected under 2 different carriers in 36 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
1M1PN4GY6NM009370
Make
Mack
Model
Pinnacle
Model year
2022
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 31, 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
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1992 or 2022

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

North American serial sequence
009370

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
2022

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 · Jul 14, 2023 – Jul 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 23, 2026TXII · Walk-around7OOSGREY HAWK OILFIELD TRUCKING LLC 32427171N98251/TX
Apr 7, 2025TXI · Full3OOSAUSTIN CHALK PETROLEUM SERVICES CORP 2031924R535807/TX
Jul 14, 2023TXII · Walk-around1OOSAUSTIN CHALK PETROLEUM SERVICES CORP 2031924R535807/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GREY HAWK OILFIELD TRUCKING LLC3242717Jul 23, 2026Jul 23, 20261TX
AUSTIN CHALK PETROLEUM SERVICES CORP2031924Jul 14, 2023Apr 7, 20252TX
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.
1N98251TX1GREY HAWK OILFIELD TRUCKING LLCJul 23, 2026Jul 23, 20261
R535807TXAUSTIN CHALK PETROLEUM SERVICES CORPJul 14, 2023Apr 7, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 31, 2026