Equipment unit · VIN-decoded · NHTSA vPIC

2025 Mac Trailer Manufacturing

5MALK2423SP083411 · Trailer · TRAILER
Carriers run under2
25 mo
Inspections3
all-time
OOS inspections1
of 3
First seenJul 26, 2024
CA
Last seenAug 28, 2026
CA
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

VIN
5MALK2423SP083411
Make
Mac Trailer Manufacturing
Model
MAC TRAILER MANUFACTURING
Model year
2025
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Sep 6, 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
LK242

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1995 or 2025

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

North American serial sequence
083411

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 · 16 decoded VINs at 100.0% prefix purity.

Model
MAC TRAILER MANUFACTURING

Prefix basis · 16 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 · Jul 26, 2024 – Aug 28, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 28, 2026CAV · Vehicle-only0—MEL DAWSON INC 6468394WE5904/CA
Oct 18, 2024CAV · Vehicle-only0—MEL DAWSON INC 6468394WE5904/CA
Jul 26, 2024CAIII · Driver-only3OOSWESTERN TRUCK PARTS & EQUIPMENT COMPANY LLC 852143DD16P30/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MEL DAWSON INC646839Oct 18, 2024Aug 28, 20262CA
WESTERN TRUCK PARTS & EQUIPMENT COMPANY LLC852143Jul 26, 2024Jul 26, 20241WA
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.
4WE5904CA1MEL DAWSON INCOct 18, 2024 → Aug 28, 20262
DD16P30CA—WESTERN TRUCK PARTS & EQUIPMENT COMPANY LLCJul 26, 2024 → Jul 26, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Sep 6, 2026