Equipment unit · VIN-decoded · NHTSA vPIC

3R9CB51B6PL152121

Not yet decoded
Carriers run under2
20 mo
Inspections7
all-time
OOS inspections3
of 7
First seenJan 11, 2024
US
Last seenSep 23, 2025
US
Inspected under 2 different carriers in 20 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
3R9CB51B6PL152121
Make
Not decoded
Model
Not decoded
Model year
Body class
Not decoded
Vehicle type
Not decoded
GVWR
Not decoded
Decoded at
Jun 20, 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
3R9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
CB51B

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

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
152121

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
Not established

Observed directly for this VIN via NHTSA vPIC.

Observed make
Not established

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
Not established

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 · Jan 11, 2024 – Sep 23, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 23, 2025USIII · Driver-only1GUMSA TRANSPORT LLC 417928590UN2C/MX
Sep 18, 2025USI · Full0GUMSA TRANSPORT LLC 417928590UN2C/MX
Dec 30, 2024USI · Full1OOSTRANSPORTES GUMSA SA DE CV 340063790UN2C/MX
Jul 24, 2024USII · Walk-around0TRANSPORTES GUMSA SA DE CV 340063790UN2C/MX
Feb 19, 2024USI · Full11OOSTRANSPORTES GUMSA SA DE CV 340063790UN2C/MX
Jan 18, 2024TXI · Full4OOSTRANSPORTES GUMSA SA DE CV 340063790UN2C/MX
Jan 11, 2024USII · Walk-around0TRANSPORTES GUMSA SA DE CV 340063790UN2C/MX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
GUMSA TRANSPORT LLC4179285Sep 18, 2025Sep 23, 20252TX
TRANSPORTES GUMSA SA DE CV3400637Jan 11, 2024Dec 30, 20245NL
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.
90UN2CMXGUMSA TRANSPORT LLCSep 18, 2025Sep 23, 20252
90UN2CMXTRANSPORTES GUMSA SA DE CVJan 11, 2024Dec 30, 20245
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 20, 2026