Equipment unit · VIN-decoded · NHTSA vPIC

2025 Mac Trailer Manufacturing

5MADN3231SW083216 · Trailer · TRAILER
Carriers run under1
11 mo
Inspections5
all-time
OOS inspections0
of 5
First seenSep 23, 2025
SC
Last seenAug 11, 2026
SC
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
5MADN3231SW083216
Make
Mac Trailer Manufacturing
Model
MAC TRAILER MANUFACTURING
Model year
2025
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 17, 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
5MA

Deterministic · VIN positions 1–3.

Vehicle descriptor section
DN323

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1995 or 2025

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

North American serial sequence
083216

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
MAC TRAILER MANUFACTURING

Prefix basis · 27 decoded VINs at 100.0% prefix purity.

Model
MAC TRAILER MANUFACTURING

Prefix basis · 27 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
2025

Observed directly for this VIN via NHTSA vPIC.

Observed make
MAC TRAILER MANUFACTURING

Observed directly for this VIN via NHTSA vPIC.

Observed model
MAC 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 · Sep 23, 2025 – Aug 11, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 11, 2026SCII · Walk-around1HERK TRANSPORT INC 2832433120725PT/SC
Dec 30, 2025SCIII · Driver-only0HERK TRANSPORT INC 2832433120725PT/SC
Nov 10, 2025SCIII · Driver-only1HERK TRANSPORT INC 2832433120725PT/SC
Sep 30, 2025SCIII · Driver-only1HERK TRANSPORT INC 2832433120725PT/SC
Sep 23, 2025SCIII · Driver-only0HERK TRANSPORT INC 2832433120725PT/SC
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HERK TRANSPORT INC2832433Sep 23, 2025Aug 11, 20265SC
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.
120725PTSC2HERK TRANSPORT INCSep 23, 2025Aug 11, 20265
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 17, 2026