Equipment unit · VIN-decoded · NHTSA vPIC

2015 Mack CHU (Pinnacle)

1M1AN09Y1FM018197 · Truck-Tractor · TRUCK
Carriers run under2
25 mo
Inspections4
all-time
OOS inspections1
of 4
First seenJul 7, 2023
TX
Last seenAug 1, 2025
OH
Inspected under 2 different carriers in 25 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
1M1AN09Y1FM018197
Make
Mack
Model
CHU (Pinnacle)
Model year
2015
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 5, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 7, 2023 – Aug 1, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 1, 2025OHIII · Driver-only1—LESS CONTRACTING INC 687615PWC5328/OH
Apr 6, 2024TXII · Walk-around1—WT BYLER COMPANY LP 556379JMC3378/TX
Jul 14, 2023TXII · Walk-around1—WT BYLER COMPANY LP 556379JMC3378/TX
Jul 7, 2023TXII · Walk-around5OOSWT BYLER COMPANY LP 556379JMC3378/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
LESS CONTRACTING INC687615Aug 1, 2025Aug 1, 20251OH
WT BYLER COMPANY LP556379Jul 7, 2023Apr 6, 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.
PWC5328OH—LESS CONTRACTING INCAug 1, 2025 → Aug 1, 20251
JMC3378TX—WT BYLER COMPANY LPJul 7, 2023 → Apr 6, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 5, 2026