BELKEBIR Oxygen Sensor Pair for Toyota Camry & RAV4 2.4L (Upstream & Downstream) — Direct-Fit, OE Replacement 234-4622/234-9049

These two BELKEBIR oxygen sensors (upstream and downstream) replace OE 234-4622 and 234-9049 to restore accurate air-fuel sensing for select 2.4L Toyota Camry and RAV4 models.

When an oxygen (O2) sensor degrades, your vehicle’s engine control unit receives incorrect exhaust readings, which can reduce fuel economy and performance. This pair of sensors from BELKEBIR is designed for direct replacement in many Toyota 2.4L applications, giving you calibrated feedback to the engine management system so it can better adjust fuel delivery and emissions processing.

Which Toyota models and years are these sensors built to fit?

These sensors are manufactured to match fitment for a range of 2.4L Toyota Camry and RAV4 vehicles. Always cross-check your vehicle year, engine size, and current part numbers before ordering to confirm compatibility.

• Camry: 2004–2011 model years covering LE, SE, XLE, Base, CE, and Hybrid 2.4L variants (specific years vary by trim).
• RAV4: 2006–2008 Base, Limited, and Sport 2.4L models.
• Compatible OE replacements: upstream sensor 234-4622 (2344622) and downstream sensor 234-9049 (2349049).

How do these oxygen sensors affect everyday driving and fuel usage?

O2 sensors tell the engine computer the oxygen level in exhaust gases so it can tune the air-fuel ratio. Replacing worn sensors helps the ECU return to accurate fueling maps, which can improve throttle response and may restore lost fuel efficiency.

• Restores accurate air-fuel feedback to the engine control unit.
• Can reduce rough idling and hesitant acceleration caused by faulty sensors.
• Helps the vehicle maintain emissions standards expected by its original design.

What materials and testing ensure long-term reliability?

BELKEBIR builds these sensors using high-temperature ceramics and durable sensing elements suitable for continuous exhaust exposure. Each unit is put through factory testing to verify signal response and reliability before it leaves production.

• High-temperature ceramic sensing element for stable readings under heat stress.
• Robust construction to resist vibration and exhaust contaminants.
• Quality control testing to confirm electrical performance and response time.

How straightforward is installation and what should I check after replacing them?

Installation is a direct-fit swap for the listed applications and typically requires standard tools and an O2 sensor socket. After installation, clear any stored engine codes and run the engine to confirm normal sensor operation and that no new fault codes return.

• Direct-fit harness and connector compatible with original wiring on listed Toyota models.
• Use an OBD-II scanner to clear and monitor engine codes after replacement.
• Check for exhaust leaks at the sensor threads and ensure secure mounting.

Who is this for: This 2-piece BELKEBIR O2 sensor set is ideal for DIY mechanics and professional installers servicing 2004–2011 Toyota Camry (2.4L) and 2006–2008 Toyota RAV4 (2.4L) owners experiencing check engine lights, poor fuel economy, or unstable engine performance. It’s also suitable for fleet maintenance shops needing reliable, OE-replacement oxygen sensors with documented part-number compatibility.