Equipment unit · VIN-decoded · NHTSA vPIC

2021 Mack Granite

1M2GR2GC7MM025083 · Truck · INCOMPLETE VEHICLE
Carriers run under1
27 mo
Inspections5
all-time
OOS inspections1
of 5
First seenDec 20, 2023
OK
Last seenMar 12, 2026
OK
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1M2GR2GC7MM025083
Make
Mack
Model
Granite
Model year
2021
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
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
1M2

Deterministic · VIN positions 1–3.

Vehicle descriptor section
GR2GC

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1991 or 2021

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

North American serial sequence
025083

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 · 2,045 decoded VINs at 100.0% prefix purity.

Model
Granite

Prefix basis · 2,045 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
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
MACK

Observed directly for this VIN via NHTSA vPIC.

Observed model
Granite

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

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 · Dec 20, 2023 – Mar 12, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 12, 2026OKIII · Driver-only0BISON READY-MIX LP 303899988C429/OK
Feb 2, 2026OKIII · Driver-only1OOSBISON READY-MIX LP 303899988C429/OK
Mar 26, 2025OKII · Walk-around2BISON READY-MIX LP 303899988C429/OK
Nov 26, 2024OKII · Walk-around3BISON READY-MIX LP 303899919C529/OK
Dec 20, 2023OKIII · Driver-only1BISON READY-MIX LP 303899919C529/OK
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BISON READY-MIX LP3038999Dec 20, 2023Mar 12, 20265OK
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.
88C429OKBISON READY-MIX LPMar 26, 2025Mar 12, 20263
19C529OKBISON READY-MIX LPDec 20, 2023Nov 26, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026