Equipment unit · VIN-decoded · NHTSA vPIC

2012 Iowa Trailer Manufacturing Iowa Trailer

1Z9T7ADD9CS417004 · Trailer · TRAILER
Carriers run under2
15 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJun 22, 2024
IA
Last seenSep 11, 2025
IA
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

VIN
1Z9T7ADD9CS417004
Make
Iowa Trailer Manufacturing
Model
Iowa Trailer
Model year
2012
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Aug 1, 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
T7ADD

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

Model year candidates
1982 or 2012

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

North American serial sequence
417004

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
IOWA TRAILER MANUFACTURING

Prefix basis · 4 decoded VINs at 100.0% prefix purity.

Model
Iowa Trailer

Prefix basis · 4 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
2012

Observed directly for this VIN via NHTSA vPIC.

Observed make
IOWA TRAILER MANUFACTURING

Observed directly for this VIN via NHTSA vPIC.

Observed model
Iowa Trailer

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 · Jun 22, 2024 – Sep 11, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 11, 2025IAIII · Driver-only1REX A YEAROUS TRUCKING LLC 2828725JP7695/IA
Jul 18, 2025IAIII · Driver-only5REX A YEAROUS TRUCKING LLC 2828725JP7695/IA
Jun 22, 2024IAIII · Driver-only4WINGERSON TRUCKING LLC 3425000JP7695/IA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
REX A YEAROUS TRUCKING LLC2828725Jul 18, 2025Sep 11, 20252IA
WINGERSON TRUCKING LLC3425000Jun 22, 2024Jun 22, 20241IA
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.
JP7695IAREX A YEAROUS TRUCKING LLCJul 18, 2025Sep 11, 20252
JP7695IAWINGERSON TRUCKING LLCJun 22, 2024Jun 22, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 1, 2026