Equipment unit · VIN-decoded · NHTSA vPIC

1991 Wabash Exterior Post Standard

1JJV532UXML152646 · Trailer · TRAILER
Carriers run under2
27 mo
Inspections4
all-time
OOS inspections0
of 4
First seenJul 4, 2023
NM
Last seenOct 22, 2025
US
Inspected under 2 different carriers in 27 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
1JJV532UXML152646
Make
Wabash
Model
Exterior Post Standard
Model year
1991
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 5, 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
1JJ

Deterministic · VIN positions 1–3.

Vehicle descriptor section
V532U

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1991 or 2021

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

North American serial sequence
152646

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
1991

Observed directly for this VIN via NHTSA vPIC.

Observed make
WABASH

Observed directly for this VIN via NHTSA vPIC.

Observed model
Exterior Post Standard

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 · Jul 4, 2023 – Oct 22, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 22, 2025USI · Full4ROMULO ARREOLA LOPEZ 559168A91266A/TX
Feb 26, 2024TXI · Full1RICARDO ALONSO TREVIZO SANTILLAN 2064218A94734A/TX
Jul 19, 2023NMIII · Driver-only0ROMULO ARREOLA LOPEZ 559168A47717A/TX
Jul 4, 2023NMIII · Driver-only0ROMULO ARREOLA LOPEZ 559168A78135A/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROMULO ARREOLA LOPEZ559168Jul 4, 2023Oct 22, 20253CI
RICARDO ALONSO TREVIZO SANTILLAN2064218Feb 26, 2024Feb 26, 20241CI
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.
A91266ATXROMULO ARREOLA LOPEZOct 22, 2025Oct 22, 20251
A94734ATXRICARDO ALONSO TREVIZO SANTILLANFeb 26, 2024Feb 26, 20241
A47717ATXROMULO ARREOLA LOPEZJul 19, 2023Jul 19, 20231
A78135ATXROMULO ARREOLA LOPEZJul 4, 2023Jul 4, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 5, 2026