Equipment unit · VIN-decoded · NHTSA vPIC

2013 Mack CHU (Pinnacle)

1M1AN07Y4DM011356 · Truck-Tractor · TRUCK
Carriers run under2
26 mo
Inspections8
all-time
OOS inspections5
of 8
First seenJul 14, 2023
AL
Last seenSep 8, 2025
AL
Inspected under 2 different carriers in 26 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
1M1AN07Y4DM011356
Make
Mack
Model
CHU (Pinnacle)
Model year
2013
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
AN07Y

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1983 or 2013

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

North American serial sequence
011356

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 · 1,371 decoded VINs at 100.0% prefix purity.

Model
CHU (Pinnacle)

Prefix basis · 1,371 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
2013

Observed directly for this VIN via NHTSA vPIC.

Observed make
MACK

Observed directly for this VIN via NHTSA vPIC.

Observed model
CHU (Pinnacle)

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 14, 2023 – Sep 8, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 8, 2025ALII · Walk-around2BACK 40 TIMBER LLC 75497665A0X6Y/AL
Aug 26, 2025ALII · Walk-around10OOSBACK 40 TIMBER LLC 75497665A0X6Y/AL
Jul 29, 2025ALII · Walk-around15OOSBACK 40 TIMBER LLC 75497616A0ER7/AL
Feb 10, 2025ALII · Walk-around10OOSBACK 40 TIMBER LLC 75497616A0ER7/AL
Oct 29, 2024ALIII · Driver-only1BACK 40 TIMBER LLC 75497616A0ER7/AL
Sep 17, 2024MSII · Walk-around4BACK 40 TIMBER LLC 75497616A0ER7/AL
Jul 11, 2024ALII · Walk-around15OOSLOWER DIXIE TIMBER CO INC 338275516A0ER7/AL
Jul 14, 2023ALII · Walk-around17OOSBACK 40 TIMBER LLC 75497616A0ER7/AL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BACK 40 TIMBER LLC754976Jul 14, 2023Sep 8, 20257AL
LOWER DIXIE TIMBER CO INC3382755Jul 11, 2024Jul 11, 20241AL
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.
65A0X6YALBACK 40 TIMBER LLCAug 26, 2025Sep 8, 20252
16A0ER7ALBACK 40 TIMBER LLCJul 14, 2023Jul 29, 20255
16A0ER7ALLOWER DIXIE TIMBER CO INCJul 11, 2024Jul 11, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026