Equipment unit · VIN-decoded · NHTSA vPIC

5MAPA4829LH052556

Not yet decoded
Carriers run under2
25 mo
Inspections3
all-time
OOS inspections0
of 3
First seenAug 23, 2023
PA
Last seenSep 11, 2025
PA
Inspected under 2 different carriers in 25 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

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
PA482

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1990 or 2020

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

North American serial sequence
052556

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 · 1,229 decoded VINs at 100.0% prefix purity.

Model
MAC TRAILER MANUFACTURING

Prefix basis · 1,229 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.

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 · Aug 23, 2023 – Sep 11, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 11, 2025PAI · Full3RUSSEL METALS WILLIAMS BAHCALL INC 83543PT131V3/PA
Apr 30, 2024PAI · Full3SAMUEL SON & CO USA INC 3429517PT900F0/PA
Aug 23, 2023PAI · Full0SAMUEL SON & CO USA INC 3429517PT900F0/PA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
RUSSEL METALS WILLIAMS BAHCALL INC83543Sep 11, 2025Sep 11, 20251WI
SAMUEL SON & CO USA INC3429517Aug 23, 2023Apr 30, 20242CA
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.
PT131V3PARUSSEL METALS WILLIAMS BAHCALL INCSep 11, 2025Sep 11, 20251
PT900F0PASAMUEL SON & CO USA INCAug 23, 2023Apr 30, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC