Equipment unit · VIN-decoded · NHTSA vPIC

3R9T493A6NC173408

Not yet decoded
Carriers run under2
8 mo
Inspections2
all-time
OOS inspections1
of 2
First seenFeb 14, 2025
TX
Last seenOct 28, 2025
US
Inspected under 2 different carriers in 8 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

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
3R9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
T493A

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
1992 or 2022

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

North American serial sequence
173408

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.

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 · Feb 14, 2025 – Oct 28, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 28, 2025USIII · Driver-only2OOSSERGIO TADEO RODRIGUEZ MARES 328061102UM6B/MX
Feb 14, 2025TXII · Walk-around3GERARDO AYALA ROEL 380185602UM6B/MX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SERGIO TADEO RODRIGUEZ MARES3280611Oct 28, 2025Oct 28, 20251TA
GERARDO AYALA ROEL3801856Feb 14, 2025Feb 14, 20251TA
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.
02UM6BMXSERGIO TADEO RODRIGUEZ MARESOct 28, 2025Oct 28, 20251
02UM6BMXGERARDO AYALA ROELFeb 14, 2025Feb 14, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC