Equipment unit · VIN-decoded · NHTSA vPIC

2016 Mack CXU (Pinnacle)

1M1AW21Y7GM077387 · Truck-Tractor · TRUCK
Carriers run under2
29 mo
Inspections5
all-time
OOS inspections0
of 5
First seenJul 13, 2023
TX
Last seenDec 22, 2025
TX
Inspected under 2 different carriers in 29 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
1M1AW21Y7GM077387
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
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
AW21Y

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

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
077387

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 · 352 decoded VINs at 100.0% prefix purity.

Model
CXU (Pinnacle)

Prefix basis · 352 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 · Jul 13, 2023 – Dec 22, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 22, 2025TXII · Walk-around0BROWNTEX TRANSPORT LLC 4225840R761429/TX
May 21, 2025MTIII · Driver-only3BROWNTEX TRANSPORT LLC 4225840R761429/TX
Dec 23, 2023TXIII · Driver-only0IINNO TRANSPORTATION INC 3687158R681518/TX
Sep 8, 2023NMIII · Driver-only0IINNO TRANSPORTATION INC 3687158R681518/TX
Jul 13, 2023TXI · Full4IINNO TRANSPORTATION INC 3687158R681518/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BROWNTEX TRANSPORT LLC4225840May 21, 2025Dec 22, 20252TX
IINNO TRANSPORTATION INC3687158Jul 13, 2023Dec 23, 20233TX
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.
R761429TXBROWNTEX TRANSPORT LLCMay 21, 2025Dec 22, 20252
R681518TXIINNO TRANSPORTATION INCJul 13, 2023Dec 23, 20233
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026