Equipment unit · VIN-decoded · NHTSA vPIC

2025 Mac

558MSB443SB009283 · Trailer · TRAILER
Carriers run under1
12 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJun 17, 2025
SD
Last seenJun 10, 2026
ND
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
558MSB443SB009283
Make
Mac
Model
MAC
Model year
2025
Body class
Trailer
Vehicle type
TRAILER
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
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
558

Deterministic · VIN positions 1–3.

Vehicle descriptor section
MSB44

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
009283

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

Prefix basis · 12 decoded VINs at 100.0% prefix purity.

Model
MAC

Prefix basis · 12 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
2025

Observed directly for this VIN via NHTSA vPIC.

Observed make
MAC

Observed directly for this VIN via NHTSA vPIC.

Observed model
MAC

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
Class 8: 33,001 lb and above (14,969 kg and above)

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 · Jun 17, 2025 – Jun 10, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 10, 2026NDI · Full1HARMS OIL COMPANY 17587727918P/SD
Apr 29, 2026NDII · Walk-around0HARMS OIL COMPANY 17587727918/SD
Jun 17, 2025SDII · Walk-around0HARMS OIL COMPANY 17587727918P/SD
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HARMS OIL COMPANY175877Jun 17, 2025Jun 10, 20263SD
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.
27918PSDHARMS OIL COMPANYJun 17, 2025Jun 10, 20262
27918SDHARMS OIL COMPANYApr 29, 2026Apr 29, 20261
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 9, 2026