Equipment unit · VIN-decoded · NHTSA vPIC

1998 Mack CH

1M1AA09XXWW015354 · Truck-Tractor · TRUCK
Carriers run under1
23 mo
Inspections3
all-time
OOS inspections1
of 3
First seenJul 12, 2023
IL
Last seenJun 4, 2025
IL
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1M1AA09XXWW015354
Make
Mack
Model
CH
Model year
1998
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 7: 26,001 - 33,000 lb (11,794 - 14,969 kg)
Decoded at
Jul 24, 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
AA09X

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1998 or 2028

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

North American serial sequence
015354

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 · 5 decoded VINs at 100.0% prefix purity.

Model
CH

Prefix basis · 5 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
1998

Observed directly for this VIN via NHTSA vPIC.

Observed make
MACK

Observed directly for this VIN via NHTSA vPIC.

Observed model
CH

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 7: 26,001 - 33,000 lb (11,794 - 14,969 kg)

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 12, 2023 – Jun 4, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 4, 2025ILII · Walk-around5OOSMATTHEWS & SONS CONTRACTORS LLC 58394816699Q/IL
Dec 9, 2024ILIII · Driver-only1MATTHEWS & SONS CONTRACTORS LLC 58394816699Q/IL
Jul 12, 2023ILIII · Driver-only1MATTHEWS & SONS CONTRACTORS LLC 58394816699Q/IL
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MATTHEWS & SONS CONTRACTORS LLC583948Jul 12, 2023Jun 4, 20253IL
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.
16699QILMATTHEWS & SONS CONTRACTORS LLCJul 12, 2023Jun 4, 20253
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 24, 2026