Amrxuts Downstream Oxygen Sensor 234-9304 Bank 1 Sensor 2 — 2018–2021 Camry/Avalon/ES300h 2.5L, 4-Wire 16.34" Harness

The Amrxuts 234-9304 downstream oxygen sensor (Bank 1, Sensor 2) is a direct-fit replacement part engineered to restore accurate exhaust oxygen readings and resolve check-engine light issues on compatible 2.5L Toyo-ta and Le-xus models.

This aftermarket oxygen sensor is built as a plug-and-play swap for vehicles that use part numbers 89467-33210, 8946733210, 234-9304, or 2349304. It’s intended for the downstream position (Bank 1, Sensor 2) on 2018–2020 Toyo-ta Camry, 2019–2021 Toyo-ta Avalon, and 2019–2020 Le-xus ES300h 2.5L engines. The unit features a four-wire harness, a 16.34-inch wiring lead, and is pressure-tested before shipping to ensure functional reliability out of the box.

How does this sensor help with a check-engine light?

When the downstream oxygen sensor fails or reports faulty readings, the vehicle’s engine control unit may trigger an OBD-II trouble code and illuminate the check-engine lamp. Replacing a degraded sensor with this Amrxuts unit supplies correct oxygen-level feedback to the vehicle’s emissions and fuel-trim systems so diagnostics clear and drivability can improve.

• Direct-fit replacement for specified models to simplify diagnostics.
• Four-wire connector supports heated-sensor operation for faster response.
• Tested before shipment to reduce return rates for nonfunctional parts.

Will this part fit my Toyota or Lexus model?

This oxygen sensor is manufactured to match OEM fitment for a defined list of Toyo-ta and Le-xus vehicles equipped with the 2.5L engines listed in the compatibility notes. Confirm your vehicle’s part number or cross-check with the models and years provided to ensure correct fitment.

• Compatible with 2018–2020 Toyo-ta Camry 2.5L variants listed.
• Compatible with 2019–2021 Toyo-ta Avalon 2.5L Limited/XLE/XSE trims.
• Compatible with 2019–2020 Le-xus ES300h 2.5L variants specified.

What are the installation and wiring specifics?

The sensor arrives pre-wired with a 16.34-inch harness and a four-wire connector intended to match the original equipment harness. It’s designed as a direct-fit component so professional or experienced DIY installers can replace the old sensor without major modifications.

• Wire quantity: 4 — supports heater and signal/ground connections.
• Wiring harness length: 16.34 inches for original routing compatibility.
• Direct-fit design minimizes the need for splicing or adapters.

What warranty and quality checks come with this sensor?

Amrxuts supplies this aftermarket downstream oxygen sensor brand new and tests each unit prior to shipment to verify electrical continuity and functionality. A limited 1-year guarantee covers manufacturing defects — contact customer service for replacement within the warranty period.

• 100% tested before shipping to ensure stability and durability.
• 1-year guarantee against manufacturing defects with replacement option.
• Aftermarket part engineered for longevity and improved economy when functioning properly.

Who is this for: This Amrxuts 234-9304 oxygen sensor is aimed at vehicle owners, fleet managers, and independent mechanics who need a reliable, cost-effective downstream oxygen sensor replacement for compatible Toyo-ta Camry, Toyo-ta Avalon, and Le-xus ES300h models. It suits anyone wanting a direct-fit alternative to OEM with documented part number cross-references and an included limited warranty — ideal for correcting emissions-related fault codes and restoring proper sensor feedback without lengthy sourcing delays.