Equipment unit · VIN-decoded · NHTSA vPIC

2018 Mac Trailer Manufacturing

5MASA5321JA042276 · Trailer · TRAILER
Carriers run under1
19 mo
Inspections8
all-time
OOS inspections1
of 8
First seenSep 11, 2024
OH
Last seenApr 17, 2026
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
5MASA5321JA042276
Make
Mac Trailer Manufacturing
Model
MAC TRAILER MANUFACTURING
Model year
2018
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 19, 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
SA532

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
042276

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 · 169 decoded VINs at 100.0% prefix purity.

Model
MAC TRAILER MANUFACTURING

Prefix basis · 169 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
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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Sep 11, 2024 – Apr 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 17, 2026TXI · Full2TENNESSEE STEEL HAULERS LLC 159317180B758/TX
Oct 6, 2025TXIII · Driver-only1TENNESSEE STEEL HAULERS LLC 159317180B758/TX
Jun 26, 2025NYII · Walk-around2TENNESSEE STEEL HAULERS LLC 159317180B758/TX
Jun 9, 2025CTII · Walk-around1OOSTENNESSEE STEEL HAULERS LLC 159317180B758/TX
May 14, 2025OHI · Full0TENNESSEE STEEL HAULERS LLC 159317180B758/TX
Feb 5, 2025ALII · Walk-around1TENNESSEE STEEL HAULERS LLC 159317180B758/TX
Jan 16, 2025TNIII · Driver-only1TENNESSEE STEEL HAULERS LLC 159317180B758/TX
Sep 11, 2024OHIII · Driver-only0TENNESSEE STEEL HAULERS LLC 159317108B758/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TENNESSEE STEEL HAULERS LLC159317Sep 11, 2024Apr 17, 20268TN
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.
180B758TXTENNESSEE STEEL HAULERS LLCJan 16, 2025Apr 17, 20267
108B758TXTENNESSEE STEEL HAULERS LLCSep 11, 2024Sep 11, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 19, 2026