Equipment unit · VIN-decoded · NHTSA vPIC

2023 Carmex

3A9DM4837PG019456 · TRAILER
Carriers run under7
23 mo
Inspections15
all-time
OOS inspections5
of 15
First seenJun 21, 2023
TX
Last seenMay 24, 2025
TX
Inspected under 7 different carriers in 23 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
3A9DM4837PG019456
Make
Carmex
Model
Not decoded
Model year
2023
Body class
Not decoded
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 16, 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
3A9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
DM483

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1993 or 2023

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

North American serial sequence
019456

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
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
CARMEX

Observed directly for this VIN via NHTSA vPIC.

Observed model
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Not established

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 · Jun 21, 2023 – May 24, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
May 24, 2025TXII · Walk-around11OOSTRANSPORTES Y MAQUINARIA MORO SA DE CV 378262701UN9M/MX
Feb 21, 2025TXII · Walk-around0LUCIO VALENZUELA ZAMORA 386234601UN9M/MX
Dec 5, 2024TXII · Walk-around11OOSTRANSPORTES Y MAQUINARIA MORO SA DE CV 378262701UN9M/MX
Aug 29, 2024TXII · Walk-around1LUCIO VALENZUELA ZAMORA 386234601UN9M/TA
Jun 27, 2024TXII · Walk-around4OOSMARIA DEL ROSARIO PONCE DIAZ 126091901UN9M/MX
Apr 9, 2024TXII · Walk-around2OOSROBERTO RAMIREZ GONZALEZ 284150001UN9M/MX
Mar 19, 2024TXIII · Driver-only3TRANSPORTES Y MAQUINARIA MORO SA DE CV 378262701UN9M/MX
Mar 15, 2024TXIII · Driver-only4TRANSPORTES Y MAQUINARIA MORO SA DE CV 378262701UN9M/MX
Feb 12, 2024TXIII · Driver-only0LUCIO VALENZUELA ZAMORA 386234601UN9M/TA
Jan 15, 2024TXII · Walk-around2AUTOTANQUES EL NUEVO LEON SA DE CV 341972101UN9M/MX
Jan 11, 2024TXI · Full6JOSE ALBERTO CHAPA HERNANDEZ 345304901UN9M/MX
Jan 9, 2024TXI · Full4JOSE ALBERTO CHAPA HERNANDEZ 345304901UN9M/TA
Dec 12, 2023TXII · Walk-around5OOSJOSE ALBERTO CHAPA HERNANDEZ 345304901UN9M/DF
Oct 27, 2023TXIII · Driver-only1JOSE FRANCISCO GUTIERREZ VEGA 375825901UN9M/MX
Jun 21, 2023TXIII · Driver-only2AUTOTANQUES EL NUEVO LEON SA DE CV 341972101UN9M/TA
03

Carriers this unit has run under

7 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRANSPORTES Y MAQUINARIA MORO SA DE CV3782627Mar 15, 2024May 24, 20254TA
LUCIO VALENZUELA ZAMORA3862346Feb 12, 2024Feb 21, 20253TA
MARIA DEL ROSARIO PONCE DIAZ1260919Jun 27, 2024Jun 27, 20241TA
ROBERTO RAMIREZ GONZALEZ2841500Apr 9, 2024Apr 9, 20241TA
AUTOTANQUES EL NUEVO LEON SA DE CV3419721Jun 21, 2023Jan 15, 20242TA
JOSE ALBERTO CHAPA HERNANDEZ3453049Dec 12, 2023Jan 11, 20243TA
JOSE FRANCISCO GUTIERREZ VEGA3758259Oct 27, 2023Oct 27, 20231TA
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.
01UN9MMXTRANSPORTES Y MAQUINARIA MORO SA DE CVMar 15, 2024May 24, 20254
01UN9MMXLUCIO VALENZUELA ZAMORAFeb 21, 2025Feb 21, 20251
01UN9MTALUCIO VALENZUELA ZAMORAFeb 12, 2024Aug 29, 20242
01UN9MMXMARIA DEL ROSARIO PONCE DIAZJun 27, 2024Jun 27, 20241
01UN9MMXROBERTO RAMIREZ GONZALEZApr 9, 2024Apr 9, 20241
01UN9MMXAUTOTANQUES EL NUEVO LEON SA DE CVJan 15, 2024Jan 15, 20241
01UN9MMXJOSE ALBERTO CHAPA HERNANDEZJan 11, 2024Jan 11, 20241
01UN9MTAJOSE ALBERTO CHAPA HERNANDEZJan 9, 2024Jan 9, 20241
01UN9MDFJOSE ALBERTO CHAPA HERNANDEZDec 12, 2023Dec 12, 20231
01UN9MMXJOSE FRANCISCO GUTIERREZ VEGAOct 27, 2023Oct 27, 20231
01UN9MTAAUTOTANQUES EL NUEVO LEON SA DE CVJun 21, 2023Jun 21, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026