Equipment unit · VIN-decoded · NHTSA vPIC

2013 Mack GU (Granite)

1M1AX09Y4DM016905 · Truck-Tractor · TRUCK
Carriers run under1
18 mo
Inspections5
all-time
OOS inspections2
of 5
First seenAug 5, 2024
TX
Last seenFeb 16, 2026
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1M1AX09Y4DM016905
Make
Mack
Model
GU (Granite)
Model year
2013
Body class
Truck-Tractor
Vehicle type
TRUCK
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
1M1

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AX09Y

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1983 or 2013

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

North American serial sequence
016905

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 · 63 decoded VINs at 100.0% prefix purity.

Model
GU (Granite)

Prefix basis · 63 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
2013

Observed directly for this VIN via NHTSA vPIC.

Observed make
MACK

Observed directly for this VIN via NHTSA vPIC.

Observed model
GU (Granite)

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 · Aug 5, 2024 – Feb 16, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 16, 2026TXII · Walk-around3OOSMILLER ENVIRONMENTAL SERVICES LLC 728026R782737/TX
Jun 20, 2025TXII · Walk-around2MILLER ENVIRONMENTAL SERVICES LLC 728026R782737/TX
Dec 10, 2024TXII · Walk-around4OOSMILLER ENVIRONMENTAL SERVICES LLC 728026R676049/TX
Aug 23, 2024TXII · Walk-around0MILLER ENVIRONMENTAL SERVICES LLC 728026R676049/TX
Aug 5, 2024TXII · Walk-around0MILLER ENVIRONMENTAL SERVICES LLC 728026R676049/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MILLER ENVIRONMENTAL SERVICES LLC728026Aug 5, 2024Feb 16, 20265TX
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.
R782737TXMILLER ENVIRONMENTAL SERVICES LLCJun 20, 2025Feb 16, 20262
R676049TXMILLER ENVIRONMENTAL SERVICES LLCAug 5, 2024Dec 10, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026