Equipment unit · VIN-decoded · NHTSA vPIC

2001 Mack CH

1M1AA13Y41W136087 · Truck-Tractor · TRUCK
Carriers run under2
36 mo
Inspections10
all-time
OOS inspections5
of 10
First seenJul 25, 2023
TX
Last seenJul 23, 2026
TX
Inspected under 2 different carriers in 36 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
1M1AA13Y41W136087
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 19, 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
4 · valid

Deterministic · position 9; calculated value 4.

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
136087

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 · Jul 25, 2023 – Jul 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 23, 2026TXII · Walk-around1OOSTEXAS BULLS CONSTRUCTION LLC 3859320MBY3006/TX
Jan 7, 2025TXI · Full0TEXAS BULLS CONSTRUCTION LLC 385932030P911M/TX
Dec 11, 2024TXI · Full0TEXAS BULLS CONSTRUCTION LLC 385932059S869M/TX
Aug 7, 2024TXI · Full4OOSTEXAS BULLS CONSTRUCTION LLC 385932033N686M/TX
Jun 26, 2024TXII · Walk-around1TEXAS BULLS CONSTRUCTION LLC 385932067S619M/TX
Jun 10, 2024TXII · Walk-around0TEXAS BULLS CONSTRUCTION LLC 385932026U606M/TX
Apr 18, 2024TXII · Walk-around1TEXAS BULLS CONSTRUCTION LLC 385932010R527M/TX
Feb 1, 2024TXI · Full11OOSEV MARTINEZ TRUCKING LLC 409291328X308V/TX
Jan 4, 2024TXI · Full13OOSEV MARTINEZ TRUCKING LLC 409291325X275V/TX
Jul 25, 2023TXII · Walk-around9OOSEV MARTINEZ TRUCKING LLC 409291325N204M/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TEXAS BULLS CONSTRUCTION LLC3859320Apr 18, 2024Jul 23, 20267TX
EV MARTINEZ TRUCKING LLC4092913Jul 25, 2023Feb 1, 20243TX
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.
MBY3006TX1TEXAS BULLS CONSTRUCTION LLCJul 23, 2026Jul 23, 20261
30P911MTXTEXAS BULLS CONSTRUCTION LLCJan 7, 2025Jan 7, 20251
59S869MTXTEXAS BULLS CONSTRUCTION LLCDec 11, 2024Dec 11, 20241
33N686MTXTEXAS BULLS CONSTRUCTION LLCAug 7, 2024Aug 7, 20241
67S619MTXTEXAS BULLS CONSTRUCTION LLCJun 26, 2024Jun 26, 20241
26U606MTXTEXAS BULLS CONSTRUCTION LLCJun 10, 2024Jun 10, 20241
10R527MTXTEXAS BULLS CONSTRUCTION LLCApr 18, 2024Apr 18, 20241
28X308VTXEV MARTINEZ TRUCKING LLCFeb 1, 2024Feb 1, 20241
25X275VTXEV MARTINEZ TRUCKING LLCJan 4, 2024Jan 4, 20241
25N204MTXEV MARTINEZ TRUCKING LLCJul 25, 2023Jul 25, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026