Equipment unit · VIN-decoded · NHTSA vPIC

2013 Mack CHU (Pinnacle)

1M1AN07Y3DM011574 · Truck-Tractor · TRUCK
Carriers run under1
26 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJul 11, 2023
MA
Last seenSep 15, 2025
MA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1M1AN07Y3DM011574
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
Jul 24, 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
3 · valid

Deterministic · position 9; calculated value 3.

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
011574

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 11, 2023 – Sep 15, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 15, 2025MAIII · Driver-only2MFMCKIERNAN ENTERPRISES 33447271AF54Z/MA
Jun 3, 2025MAII · Walk-around2MFMCKIERNAN ENTERPRISES 33447271AF54Z/MA
Jul 11, 2023MAIII · Driver-only1MFMCKIERNAN ENTERPRISES 33447271AA74Z/MA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MFMCKIERNAN ENTERPRISES3344727Jul 11, 2023Sep 15, 20253MA
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.
1AF54ZMAMFMCKIERNAN ENTERPRISESJun 3, 2025Sep 15, 20252
1AA74ZMAMFMCKIERNAN ENTERPRISESJul 11, 2023Jul 11, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 24, 2026