Equipment unit · VIN-decoded · NHTSA vPIC

2018 Mac Trailer Manufacturing

5MAMN4028JW043245 · Trailer · TRAILER
Carriers run under2
19 mo
Inspections3
all-time
OOS inspections0
of 3
First seenMar 19, 2024
MS
Last seenOct 8, 2025
TN
Inspected under 2 different carriers in 19 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
5MAMN4028JW043245
Make
Mac Trailer Manufacturing
Model
MAC TRAILER MANUFACTURING
Model year
2018
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 9, 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
MN402

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1988 or 2018

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

North American serial sequence
043245

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.

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.

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
2018

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

  • 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 · Mar 19, 2024 – Oct 8, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 8, 2025TNIII · Driver-only2GRIZZARD TRUCKING LLC 28212807440T/KY
Apr 8, 2024ALII · Walk-around3MACK TRANSPORTATION LLC 172654774470T/KY
Mar 19, 2024MSIII · Driver-only2MACK TRANSPORTATION LLC 17265471174470T/KY
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GRIZZARD TRUCKING LLC2821280Oct 8, 2025Oct 8, 20251AL
MACK TRANSPORTATION LLC1726547Mar 19, 2024Apr 8, 20242AL
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.
7440TKYGRIZZARD TRUCKING LLCOct 8, 2025Oct 8, 20251
74470TKYMACK TRANSPORTATION LLCApr 8, 2024Apr 8, 20241
1174470TKYMACK TRANSPORTATION LLCMar 19, 2024Mar 19, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026