Equipment unit · VIN-decoded · NHTSA vPIC

2025 Mack Granite

1M2GR3GC0SM046487 · Truck · INCOMPLETE VEHICLE
Carriers run under1
22 mo
Inspections9
all-time
OOS inspections0
of 9
First seenAug 7, 2024
TX
Last seenJun 10, 2026
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1M2GR3GC0SM046487
Make
Mack
Model
Granite
Model year
2025
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 19, 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
GR3GC

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1995 or 2025

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

North American serial sequence
046487

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 · 831 decoded VINs at 100.0% prefix purity.

Model
Granite

Prefix basis · 831 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
2025

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 · Aug 7, 2024 – Jun 10, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 10, 2026TXII · Walk-around0WT BYLER COMPANY LP 556379K203777/TX
Jan 15, 2026TXI · Full0WT BYLER COMPANY LP 556379K203777/TX
Dec 28, 2025TXII · Walk-around0WT BYLER COMPANY LP 556379K203777/TX
Oct 6, 2025TXI · Full0WT BYLER COMPANY LP 556379K203777/TX
May 21, 2025TXI · Full0WT BYLER COMPANY LP 556379K203777/TX
Mar 18, 2025TXI · Full0WT BYLER COMPANY LP 556379K203777/TX
Mar 3, 2025TXII · Walk-around0WT BYLER COMPANY LP 556379K203777/TX
Oct 28, 2024LAIII · Driver-only0WT BYLER COMPANY LP 556379K195388/TX
Aug 7, 2024TXI · Full0WT BYLER COMPANY LP 556379K195388/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WT BYLER COMPANY LP556379Aug 7, 2024Jun 10, 20269TX
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.
K203777TXWT BYLER COMPANY LPMar 3, 2025Jun 10, 20267
K195388TXWT BYLER COMPANY LPAug 7, 2024Oct 28, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026