Equipment unit · VIN-decoded · NHTSA vPIC

2016 Mack CXU (Pinnacle)

1M1AW21Y8GM052224 · Truck-Tractor · TRUCK
Carriers run under3
31 mo
Inspections4
all-time
OOS inspections1
of 4
First seenOct 18, 2023
IL
Last seenMay 2, 2026
ND
Inspected under 3 different carriers in 31 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
1M1AW21Y8GM052224
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
AW21Y

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
052224

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 · Oct 18, 2023 – May 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 2, 2026NDI · Full4OOSSHAAM EXPRESS LLC 3087036TEMP/MN
Dec 28, 2025TXII · Walk-around6DYNAMIC EXPRESS LLC 4390248PWK2295/OH
Aug 19, 2025OHIII · Driver-only0SUNSHINE LOGISTICS EXPRESS LLC 2405433PWK2295/OH
Oct 18, 2023ILIII · Driver-only0SHAAM EXPRESS LLC 3087036PAV5181/MN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SHAAM EXPRESS LLC3087036Oct 18, 2023May 2, 20262MN
DYNAMIC EXPRESS LLC4390248Dec 28, 2025Dec 28, 20251MN
SUNSHINE LOGISTICS EXPRESS LLC2405433Aug 19, 2025Aug 19, 20251OH
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.
TEMPMNSHAAM EXPRESS LLCMay 2, 2026May 2, 20261
PWK2295OHDYNAMIC EXPRESS LLCDec 28, 2025Dec 28, 20251
PWK2295OHSUNSHINE LOGISTICS EXPRESS LLCAug 19, 2025Aug 19, 20251
PAV5181MNSHAAM EXPRESS LLCOct 18, 2023Oct 18, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 5, 2026