Equipment unit · VIN-decoded · NHTSA vPIC

2001 Mack CH

1M2AA18Y01W133188 · Truck-Tractor · INCOMPLETE VEHICLE
Carriers run under1
30 mo
Inspections7
all-time
OOS inspections4
of 7
First seenAug 23, 2023
TX
Last seenFeb 18, 2026
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1M2AA18Y01W133188
Make
Mack
Model
CH
Model year
2001
Body class
Truck-Tractor
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 21, 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
1M2

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AA18Y

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
2001 or 2031

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

North American serial sequence
133188

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 · 156 decoded VINs at 100.0% prefix purity.

Model
CH

Prefix basis · 156 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
2001

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
INCOMPLETE VEHICLE

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 · Aug 23, 2023 – Feb 18, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 18, 2026TXII · Walk-around5OOSJOHN ROSANBALM 2033477PXY9598/TX
Aug 11, 2025TXII · Walk-around4OOSJOHN ROSANBALM 2033477PXY9598/TX
Apr 10, 2025TXI · Full7OOSJOHN ROSANBALM 2033477PXY9598/TX
Mar 7, 2025TXII · Walk-around13OOSJOHN ROSANBALM 2033477PXY9598/TX
Dec 5, 2023TXII · Walk-around0JOHN ROSANBALM 2033477PXY9598/TX
Nov 29, 2023TXII · Walk-around1JOHN ROSANBALM 2033477PXY9598/TX
Aug 23, 2023TXII · Walk-around5JOHN ROSANBALM 2033477PXY9598/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JOHN ROSANBALM2033477Aug 23, 2023Feb 18, 20267TX
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.
PXY9598TXJOHN ROSANBALMAug 23, 2023Feb 18, 20267
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026