Equipment unit · VIN-decoded · NHTSA vPIC

2011 Mac Trailer Manufacturing

5MAPA4525BA020134 · Trailer · TRAILER
Carriers run under2
18 mo
Inspections5
all-time
OOS inspections0
of 5
First seenApr 18, 2024
OH
Last seenOct 31, 2025
SC
Inspected under 2 different carriers in 18 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
5MAPA4525BA020134
Make
Mac Trailer Manufacturing
Model
MAC TRAILER MANUFACTURING
Model year
2011
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 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
PA452

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
1981 or 2011

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

North American serial sequence
020134

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 · 57 decoded VINs at 100.0% prefix purity.

Model
MAC TRAILER MANUFACTURING

Prefix basis · 57 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
2011

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 · Apr 18, 2024 – Oct 31, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 31, 2025SCIII · Driver-only0FRALEY & SCHILLING INC 125465294253/ME
Oct 20, 2025OHI · Full0FRALEY & SCHILLING INC 1254652942753/ME
Aug 27, 2025SCI · Full0FRALEY & SCHILLING INC 1254652942753/ME
Aug 8, 2025KYI · Full0FRALEY & SCHILLING INC 12546529-42753/ME
Apr 18, 2024OHIII · Driver-only0R & H TRUCKING LLC 39320542942753/ME
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
FRALEY & SCHILLING INC125465Aug 8, 2025Oct 31, 20254IN
R & H TRUCKING LLC3932054Apr 18, 2024Apr 18, 20241IN
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.
294253MEFRALEY & SCHILLING INCOct 31, 2025Oct 31, 20251
2942753MEFRALEY & SCHILLING INCAug 27, 2025Oct 20, 20252
29-42753MEFRALEY & SCHILLING INCAug 8, 2025Aug 8, 20251
2942753MER & H TRUCKING LLCApr 18, 2024Apr 18, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 10, 2026