Equipment unit · VIN-decoded · NHTSA vPIC

5MAMN5034GC037371

Not yet decoded
Carriers run under2
15 mo
Inspections2
all-time
OOS inspections2
of 2
First seenApr 2, 2024
NH
Last seenJul 24, 2025
NH
Inspected under 2 different carriers in 15 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
MN503

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1986 or 2016

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

North American serial sequence
037371

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 · 11 decoded VINs at 100.0% prefix purity.

Model
MAC TRAILER MANUFACTURING

Prefix basis · 11 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 · Apr 2, 2024 – Jul 24, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 24, 2025NHII · Walk-around8OOSJJR TRANSPORT CORP 4380270265403B/ME
Apr 2, 2024NHI · Full31OOSZ EXPRESS CORPORATION 2868916265403B/ME
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JJR TRANSPORT CORP4380270Jul 24, 2025Jul 24, 20251MA
Z EXPRESS CORPORATION2868916Apr 2, 2024Apr 2, 20241MA
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.
265403BMEJJR TRANSPORT CORPJul 24, 2025Jul 24, 20251
265403BMEZ EXPRESS CORPORATIONApr 2, 2024Apr 2, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC