Equipment unit · VIN-decoded · NHTSA vPIC

2015 Mac Trailer Manufacturing

5MAPA4226FA030746 · Trailer · TRAILER
Carriers run under2
20 mo
Inspections5
all-time
OOS inspections2
of 5
First seenMar 12, 2024
CA
Last seenNov 21, 2025
CA
Inspected under 2 different carriers in 20 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
5MAPA4226FA030746
Make
Mac Trailer Manufacturing
Model
MAC TRAILER MANUFACTURING
Model year
2015
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 12, 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
PA422

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1985 or 2015

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

North American serial sequence
030746

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 · 8 decoded VINs at 100.0% prefix purity.

Model
MAC TRAILER MANUFACTURING

Prefix basis · 8 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
2015

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 · Mar 12, 2024 – Nov 21, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 21, 2025CAII · Walk-around0OLDCASTLE APG WEST INC 543274NM5651/CA
Mar 14, 2025CAII · Walk-around0OLDCASTLE APG WEST INC 543274NM5651/CA
Jan 2, 2025CAII · Walk-around3OOSOLDCASTLE APG WEST INC 543274NM5651/CA
Aug 5, 2024CAI · Full1OOSOLDCASTLE APG WEST INC 543274NM5651/CA
Mar 12, 2024CAI · Full0CALSTONE CO INC 26520164NM5651/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
OLDCASTLE APG WEST INC54327Aug 5, 2024Nov 21, 20254AZ
CALSTONE CO INC2652016Mar 12, 2024Mar 12, 20241CA
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.
4NM5651CAOLDCASTLE APG WEST INCAug 5, 2024Nov 21, 20254
4NM5651CACALSTONE CO INCMar 12, 2024Mar 12, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 12, 2026