Equipment unit · VIN-decoded · NHTSA vPIC

2001 Mack CH

1M1AA13Y11W141134 · Truck-Tractor · TRUCK
Carriers run under2
33 mo
Inspections9
all-time
OOS inspections2
of 9
First seenOct 31, 2023
TX
Last seenJul 8, 2026
TX
Inspected under 2 different carriers in 33 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
1M1AA13Y11W141134
Make
Mack
Model
CH
Model year
2001
Body class
Truck-Tractor
Vehicle type
TRUCK
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
1M1

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AA13Y

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
141134

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 · 357 decoded VINs at 100.0% prefix purity.

Model
CH

Prefix basis · 357 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
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 31, 2023 – Jul 8, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 8, 2026TXII · Walk-around1EDWIN ALBERTO ARIAS 2395873KKR4257/TX
Mar 25, 2026TXII · Walk-around3OOSEDWIN ALBERTO ARIAS 2395873KKR4257/TX
Feb 27, 2026TXII · Walk-around1EDWIN ALBERTO ARIAS 2395873KKR4257/TX
Feb 27, 2026TXII · Walk-around5OOSFOUR SEASONS DEVELOPMENT CO INC 2155915KKR4257/TX
Oct 28, 2025TXII · Walk-around4EDWIN ALBERTO ARIAS 2395873KKR4257/TX
Apr 24, 2025TXII · Walk-around2EDWIN ALBERTO ARIAS 2395873KKR4257/TX
Mar 13, 2025TXII · Walk-around0EDWIN ALBERTO ARIAS 2395873KKR4257/TX
Jan 13, 2025TXII · Walk-around0EDWIN ALBERTO ARIAS 2395873KKR4257/TX
Oct 31, 2023TXII · Walk-around8EDWIN ALBERTO ARIAS 2395873KKR4257/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
EDWIN ALBERTO ARIAS2395873Oct 31, 2023Jul 8, 20268TX
FOUR SEASONS DEVELOPMENT CO INC2155915Feb 27, 2026Feb 27, 20261TX
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.
KKR4257TX1EDWIN ALBERTO ARIASOct 31, 2023Jul 8, 20268
KKR4257TXFOUR SEASONS DEVELOPMENT CO INCFeb 27, 2026Feb 27, 20261
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026