Equipment unit · VIN-decoded · NHTSA vPIC

2021 Aldura Aldura Trailer

3S9A6BU27MP104164 · Trailer · TRAILER
Carriers run under1
21 mo
Inspections3
all-time
OOS inspections0
of 3
First seenMay 25, 2024
CT
Last seenFeb 24, 2026
NY
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3S9A6BU27MP104164
Make
Aldura
Model
Aldura Trailer
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 8, 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
3S9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
A6BU2

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1991 or 2021

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

North American serial sequence
104164

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
2021

Observed directly for this VIN via NHTSA vPIC.

Observed make
ALDURA

Observed directly for this VIN via NHTSA vPIC.

Observed model
Aldura Trailer

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · May 25, 2024 – Feb 24, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 24, 2026NYII · Walk-around0H I STONE & SON INC 496152AX30045/CT
Nov 8, 2024CTII · Walk-around0H I STONE & SON INC 496152AX30045/CT
May 25, 2024CTIII · Driver-only1H I STONE & SON INC 496152AX30045/CT
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
H I STONE & SON INC496152May 25, 2024Feb 24, 20263CT
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.
AX30045CTH I STONE & SON INCMay 25, 2024Feb 24, 20263
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 8, 2026