Equipment unit · VIN-decoded · NHTSA vPIC

2004 Mack CH

1M2AA18Y64N155710 · Truck-Tractor · INCOMPLETE VEHICLE
Carriers run under2
18 mo
Inspections4
all-time
OOS inspections1
of 4
First seenJul 13, 2023
OK
Last seenJan 23, 2025
OK
Inspected under 2 different carriers in 18 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
1M2AA18Y64N155710
Make
Mack
Model
CH
Model year
2004
Body class
Truck-Tractor
Vehicle type
INCOMPLETE VEHICLE
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.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1M2

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AA18Y

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
2004 or 2034

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

North American serial sequence
155710

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 · 156 decoded VINs at 100.0% prefix purity.

Model
CH

Prefix basis · 156 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
2004

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
INCOMPLETE VEHICLE

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 13, 2023 – Jan 23, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 23, 2025OKIII · Driver-only1RIDGELINE LOGGING LLC 42408806FP725/OK
Nov 14, 2024OKI · Full24OOSRIDGELINE LOGGING LLC 42408806FP725/OK
Sep 1, 2023ARIII · Driver-only1RIDGELINE TRUCKING LLC 37230253HJ718/OK
Jul 13, 2023OKII · Walk-around3RIDGELINE TRUCKING LLC 37230253HJ718/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
RIDGELINE LOGGING LLC4240880Nov 14, 2024Jan 23, 20252OK
RIDGELINE TRUCKING LLC3723025Jul 13, 2023Sep 1, 20232OK
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.
6FP725OKRIDGELINE LOGGING LLCNov 14, 2024Jan 23, 20252
3HJ718OKRIDGELINE TRUCKING LLCJul 13, 2023Sep 1, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 5, 2026