Equipment unit · VIN-decoded · NHTSA vPIC

2018 Iowa Steel Fabrication Iowa Steel Fabrication, LLC.

1Z9MA1124JA448253 · Trailer · TRAILER
Carriers run under1
8 mo
Inspections4
all-time
OOS inspections0
of 4
First seenOct 25, 2024
WY
Last seenJun 9, 2025
MT
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1Z9MA1124JA448253
Make
Iowa Steel Fabrication
Model
Iowa Steel Fabrication, LLC.
Model year
2018
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 18, 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
1Z9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
MA112

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

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
448253

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
IOWA STEEL FABRICATION

Observed directly for this VIN via NHTSA vPIC.

Observed model
Iowa Steel Fabrication, LLC.

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 · Oct 25, 2024 – Jun 9, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 9, 2025MTII · Walk-around0RED MOUNTAIN TRUCK LINES INC 589093CSJ494/MT
Feb 27, 2025MTI · Full0RED MOUNTAIN TRUCK LINES INC 589093CSJ494/MT
Nov 6, 2024MTII · Walk-around0RED MOUNTAIN TRUCK LINES INC 589093CSJ494/MT
Oct 25, 2024WYIII · Driver-only0RED MOUNTAIN TRUCK LINES INC 589093CSJ494/MT
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
RED MOUNTAIN TRUCK LINES INC589093Oct 25, 2024Jun 9, 20254MT
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.
CSJ494MTRED MOUNTAIN TRUCK LINES INCOct 25, 2024Jun 9, 20254
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 18, 2026