Equipment unit · VIN-decoded · NHTSA vPIC

2001 Mac Trailer Manufacturing

5MADS36331C004535 · Trailer · TRAILER
Carriers run under2
9 mo
Inspections9
all-time
OOS inspections1
of 9
First seenAug 22, 2025
WV
Last seenMay 6, 2026
WV
Inspected under 2 different carriers in 9 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
5MADS36331C004535
Make
Mac Trailer Manufacturing
Model
MAC TRAILER MANUFACTURING
Model year
2001
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 16, 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
DS363

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
2001 or 2031

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

North American serial sequence
004535

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 · 11 decoded VINs at 100.0% prefix purity.

Model
MAC TRAILER MANUFACTURING

Prefix basis · 11 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
2001

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 · Aug 22, 2025 – May 6, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 6, 2026WVII · Walk-around6MARCUM TRUCKING LLC 3421276C68757/WV
Mar 25, 2026WVII · Walk-around6MARCUM TRUCKING LLC 3421276C68757/WV
Mar 9, 2026WVII · Walk-around5BLACK DIAMOND CONTRACTING LLC 4250797C68757/WV
Mar 2, 2026WVII · Walk-around3MARCUM TRUCKING LLC 3421276C68757/WV
Jan 29, 2026WVII · Walk-around4BLACK DIAMOND CONTRACTING LLC 4250797C68757/WV
Jan 6, 2026WVII · Walk-around5MARCUM TRUCKING LLC 3421276C68757/WV
Nov 24, 2025WVII · Walk-around7MARCUM TRUCKING LLC 3421276C68757/WV
Oct 27, 2025WVII · Walk-around8BLACK DIAMOND CONTRACTING LLC 4250797C68757/WV
Aug 22, 2025WVII · Walk-around6OOSMARCUM TRUCKING LLC 3421276C68757/WV
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MARCUM TRUCKING LLC3421276Aug 22, 2025May 6, 20266WV
BLACK DIAMOND CONTRACTING LLC4250797Oct 27, 2025Mar 9, 20263WV
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.
C68757WVMARCUM TRUCKING LLCAug 22, 2025May 6, 20266
C68757WVBLACK DIAMOND CONTRACTING LLCOct 27, 2025Mar 9, 20263
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026