Equipment unit · VIN-decoded · NHTSA vPIC

2012 Mac Trailer Manufacturing

5MAPA5236CA023581 · Trailer · TRAILER
Carriers run under1
22 mo
Inspections7
all-time
OOS inspections3
of 7
First seenMay 16, 2024
CO
Last seenMar 3, 2026
SD
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
5MAPA5236CA023581
Make
Mac Trailer Manufacturing
Model
MAC TRAILER MANUFACTURING
Model year
2012
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Sep 10, 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
PA523

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1982 or 2012

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

North American serial sequence
023581

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
2012

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

  • 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 16, 2024 – Mar 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 3, 2026SDII · Walk-around2OOSUPPER DECK TRANSPORT INC 551636TH4810/MB
Oct 6, 2025NDI · Full1OOSUPPER DECK TRANSPORT INC 551636TH4810/MB
Apr 23, 2025WAIII · Driver-only2UPPER DECK TRANSPORT INC 551636TH4810/MB
Mar 13, 2025MTII · Walk-around2UPPER DECK TRANSPORT INC 551636TH4810/MB
Jan 10, 2025NDIII · Driver-only0UPPER DECK TRANSPORT INC 551636TH4810/MB
Nov 18, 2024MNIII · Driver-only0UPPER DECK TRANSPORT INC 551636TH4810/MB
May 16, 2024COIII · Driver-only1OOSUPPER DECK TRANSPORT INC 551636TH4810/MB
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
UPPER DECK TRANSPORT INC551636May 16, 2024Mar 3, 20267MB
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.
TH4810MBUPPER DECK TRANSPORT INCMay 16, 2024Mar 3, 20267
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Sep 10, 2026