Equipment unit · VIN-decoded · NHTSA vPIC

2023 Mack Pinnacle

1M1PN4GY4PM012772 · Truck-Tractor · TRUCK
Carriers run under2
19 mo
Inspections2
all-time
OOS inspections1
of 2
First seenNov 22, 2023
MS
Last seenJun 19, 2025
LA
Inspected under 2 different carriers in 19 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
1M1PN4GY4PM012772
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
Aug 24, 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
4 · valid

Deterministic · position 9; calculated value 4.

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
012772

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 · Nov 22, 2023 – Jun 19, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 19, 2025LAII · Walk-around2SOUTHEASTERN TRUCKING COMPANY LLC 2598371R4922HY/TN
Nov 22, 2023MSI · Full3OOSTRI-STATE TRUCK CENTER INC 8039R4922HY/TN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTHEASTERN TRUCKING COMPANY LLC2598371Jun 19, 2025Jun 19, 20251MS
TRI-STATE TRUCK CENTER INC8039Nov 22, 2023Nov 22, 20231TN
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.
R4922HYTNSOUTHEASTERN TRUCKING COMPANY LLCJun 19, 2025Jun 19, 20251
R4922HYTNTRI-STATE TRUCK CENTER INCNov 22, 2023Nov 22, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 24, 2026