Equipment unit · VIN-decoded · NHTSA vPIC

2014 Mac Trailer Manufacturing

5MASA5224EA028539 · Trailer · TRAILER
Carriers run under2
14 mo
Inspections2
all-time
OOS inspections0
of 2
First seenFeb 15, 2025
IA
Last seenApr 8, 2026
MT
Inspected under 2 different carriers in 14 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
5MASA5224EA028539
Make
Mac Trailer Manufacturing
Model
MAC TRAILER MANUFACTURING
Model year
2014
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Sep 23, 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.

Source · 49 CFR Part 565 ↗
Vehicle descriptor section
SA522

Deterministic · VIN positions 4–8.

Source · 49 CFR Part 565 ↗
Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Source · 49 CFR Part 565 ↗
Model year candidates
1984 or 2014

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

Source · 49 CFR Part 565 ↗
North American serial sequence
028539

Deterministic · positions 12–17 for a North American WMI.

Source · 49 CFR Part 565 ↗

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.

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 · Feb 15, 2025 – Apr 8, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 8, 2026MTII · Walk-around0—G-STRING TRANSPORTATION LLC 894188STC9709/MN
Feb 15, 2025IAIII · Driver-only1—WILLE TRANSPORT INC 1914045342STL/MN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
G-STRING TRANSPORTATION LLC894188Apr 8, 2026Apr 8, 20261MN
WILLE TRANSPORT INC191404Feb 15, 2025Feb 15, 20251MN
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.
STC9709MN—G-STRING TRANSPORTATION LLCApr 8, 2026 → Apr 8, 20261
5342STLMN—WILLE TRANSPORT INCFeb 15, 2025 → Feb 15, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Sep 23, 2026