Equipment unit · VIN-decoded · NHTSA vPIC

2016 Mack CXU (Pinnacle)

1M1AW21Y9GM059019 · Truck-Tractor · TRUCK
Carriers run under1
14 mo
Inspections5
all-time
OOS inspections2
of 5
First seenJun 23, 2023
ND
Last seenAug 13, 2024
MT
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1M1AW21Y9GM059019
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
9 · valid

Deterministic · position 9; calculated value 9.

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
059019

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 · Jun 23, 2023 – Aug 13, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 13, 2024MTII · Walk-around2OOSSTEAMBOAT SERVICES LLC 3777329A16211/WY
Mar 8, 2024NDII · Walk-around4OOSSTEAMBOAT SERVICES LLC 3777329A16211/WY
Feb 23, 2024NDII · Walk-around0STEAMBOAT SERVICES LLC 3777329A16211/WY
Oct 10, 2023SDIII · Driver-only0STEAMBOAT SERVICES LLC 3777329A16211/WY
Jun 23, 2023NDI · Full4STEAMBOAT SERVICES LLC 3777329A16211/WY
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
STEAMBOAT SERVICES LLC3777329Jun 23, 2023Aug 13, 20245WY
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.
A16211WYSTEAMBOAT SERVICES LLCJun 23, 2023Aug 13, 20245
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026