Equipment unit · VIN-decoded · NHTSA vPIC

2024 Mac Trailer Manufacturing

5MAPA5321RH079434 · Trailer · TRAILER
Carriers run under2
12 mo
Inspections8
all-time
OOS inspections1
of 8
First seenJul 28, 2025
CO
Last seenJul 31, 2026
OH
Inspected under 2 different carriers in 12 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
5MAPA5321RH079434
Make
Mac Trailer Manufacturing
Model
MAC TRAILER MANUFACTURING
Model year
2024
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 25, 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
PA532

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1994 or 2024

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

North American serial sequence
079434

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 · 984 decoded VINs at 100.0% prefix purity.

Model
MAC TRAILER MANUFACTURING

Prefix basis · 984 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
2024

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 · Jul 28, 2025 – Jul 31, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 31, 2026OHIII · Driver-only0MD UNITED INC 2565724991571ST/IL
Jun 25, 2026WAIII · Driver-only1MD UNITED INC 2565724991571ST/IL
Jun 10, 2026MTII · Walk-around0MD UNITED INC 2565724991571ST/IL
Apr 21, 2026SDIII · Driver-only0MD UNITED INC 2565724991571ST/IL
Apr 21, 2026SDIII · Driver-only2OOSGRAY FLEET CORP 25385641053560ST/IL
Jan 21, 2026SDIII · Driver-only1MD UNITED INC 2565724991571ST/IL
Jan 13, 2026CAII · Walk-around1MD UNITED INC 2565724991571ST/IL
Jul 28, 2025COIII · Driver-only0MD UNITED INC 2565724991571ST/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MD UNITED INC2565724Jul 28, 2025Jul 31, 20267IL
GRAY FLEET CORP2538564Apr 21, 2026Apr 21, 20261IL
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.
991571STIL2MD UNITED INCJul 28, 2025Jul 31, 20267
1053560STILGRAY FLEET CORPApr 21, 2026Apr 21, 20261
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026