Equipment unit · VIN-decoded · NHTSA vPIC

2016 Mack CXU (Pinnacle)

1M1AW09Y8GM078556 · Truck-Tractor · TRUCK
Carriers run under2
28 mo
Inspections4
all-time
OOS inspections4
of 4
First seenNov 10, 2023
TX
Last seenMar 12, 2026
TX
Inspected under 2 different carriers in 28 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
1M1AW09Y8GM078556
Make
Mack
Model
CXU (Pinnacle)
Model year
2016
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 5, 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
AW09Y

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1986 or 2016

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

North American serial sequence
078556

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 · 836 decoded VINs at 100.0% prefix purity.

Model
CXU (Pinnacle)

Prefix basis · 836 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
2016

Observed directly for this VIN via NHTSA vPIC.

Observed make
MACK

Observed directly for this VIN via NHTSA vPIC.

Observed model
CXU (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 10, 2023 – Mar 12, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 12, 2026TXII · Walk-around3OOSLEYVA AND SONS TRANSPORT LLC 2857815R797993/TX
Jul 9, 2025TXII · Walk-around12OOSDAVIS MOUNTAIN TRANSPORT LLC 29616451N56730/TX
Feb 21, 2025TXII · Walk-around3OOSDAVIS MOUNTAIN TRANSPORT LLC 29616451N56730/TX
Nov 10, 2023TXII · Walk-around3OOSDAVIS MOUNTAIN TRANSPORT LLC 296164512Y226V/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
LEYVA AND SONS TRANSPORT LLC2857815Mar 12, 2026Mar 12, 20261TX
DAVIS MOUNTAIN TRANSPORT LLC2961645Nov 10, 2023Jul 9, 20253TX
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.
R797993TXLEYVA AND SONS TRANSPORT LLCMar 12, 2026Mar 12, 20261
1N56730TXDAVIS MOUNTAIN TRANSPORT LLCFeb 21, 2025Jul 9, 20252
12Y226VTXDAVIS MOUNTAIN TRANSPORT LLCNov 10, 2023Nov 10, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 5, 2026