Equipment unit · VIN-decoded · NHTSA vPIC

2019 Mack CHU (Pinnacle)

1M1AN07Y3KM028419 · Truck-Tractor · TRUCK
Carriers run under1
17 mo
Inspections5
all-time
OOS inspections1
of 5
First seenJul 10, 2024
CA
Last seenDec 1, 2025
CA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1M1AN07Y3KM028419
Make
Mack
Model
CHU (Pinnacle)
Model year
2019
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 28, 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
AN07Y

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1989 or 2019

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

North American serial sequence
028419

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 · 1,371 decoded VINs at 100.0% prefix purity.

Model
CHU (Pinnacle)

Prefix basis · 1,371 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
2019

Observed directly for this VIN via NHTSA vPIC.

Observed make
MACK

Observed directly for this VIN via NHTSA vPIC.

Observed model
CHU (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 10, 2024 – Dec 1, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 1, 2025CAIII · Driver-only1MATHEWS READYMIX LLC 2618003ZP41027/CA
Feb 11, 2025CAI · Full0MATHEWS READYMIX LLC 2618003ZP41027/CA
Jan 8, 2025NVII · Walk-around0MATHEWS READYMIX LLC 2618003ZP41027/CA
Jul 31, 2024CAIII · Driver-only1OOSMATHEWS READYMIX LLC 2618003XP76288/CA
Jul 10, 2024CAI · Full0MATHEWS READYMIX LLC 2618003XP76288/CA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MATHEWS READYMIX LLC2618003Jul 10, 2024Dec 1, 20255CA
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.
ZP41027CAMATHEWS READYMIX LLCJan 8, 2025Dec 1, 20253
XP76288CAMATHEWS READYMIX LLCJul 10, 2024Jul 31, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026