Equipment unit · VIN-decoded · NHTSA vPIC

2023 Midwest Trailer Manufacturing

4M9DS2329P1017013 · Trailer · TRAILER
Carriers run under2
13 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJul 31, 2025
MI
Last seenAug 10, 2026
MI
Inspected under 2 different carriers in 13 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
4M9DS2329P1017013
Make
Midwest Trailer Manufacturing
Model
Midwest Trailer Manufacturing
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 13, 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
4M9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
DS232

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1993 or 2023

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

North American serial sequence
017013

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
MIDWEST TRAILER MANUFACTURING

Prefix basis · 35 decoded VINs at 100.0% prefix purity.

Model
Midwest Trailer Manufacturing

Prefix basis · 35 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
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
MIDWEST TRAILER MANUFACTURING

Observed directly for this VIN via NHTSA vPIC.

Observed model
Midwest Trailer Manufacturing

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

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 31, 2025 – Aug 10, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 10, 2026MII · Full14ACE ASPHALT LLC 4282864DEF756/MT
Aug 22, 2025MIIII · Driver-only0KATIE RAE ROSS 4381463DEF756/MT
Jul 31, 2025MIII · Walk-around3KATIE RAE ROSS 4381463DEF756/MT
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ACE ASPHALT LLC4282864Aug 10, 2026Aug 10, 20261MI
KATIE RAE ROSS4381463Jul 31, 2025Aug 22, 20252TX
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.
DEF756MT2ACE ASPHALT LLCAug 10, 2026Aug 10, 20261
DEF756MTKATIE RAE ROSSJul 31, 2025Aug 22, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 13, 2026