Denso 234-4261 Oxygen Sensor - Downstream, Downstream Front or Downstream Left

Reliable Oxygen Sensor for Lexus and Toyota Vehicles

The Denso OE Style 234-4261 oxygen sensor is designed specifically for select Lexus and Toyota models, including the Camry, Tacoma, and RAV4. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance.

• Heated sensor type for faster warm-up and improved efficiency
• Specific fit for Lexus and Toyota models such as 4Runner, ES300, and GX470
• Threaded mounting type with a 0.708-inch thread diameter for secure installation
• Four-wire design with a male connector for reliable electrical connection
• Wiring harness length of 10.24 inches to accommodate factory routing

About the Denso OE Style Product Line

The OE Style line from Denso offers oxygen sensors engineered to meet original equipment specifications. The 234-4261 sensor maintains factory fit and function, providing a direct replacement that supports proper emissions control and engine management systems in Lexus and Toyota vehicles. This line focuses on precise fitment and durability to match the performance of the original sensor.

Product Details and Specifications

This Denso oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, reducing emissions during cold starts. The sensor is designed with a threaded mounting type and a 0.708-inch thread diameter, ensuring a secure and leak-free fit. The four-wire configuration includes a male connector, facilitating straightforward electrical integration with the vehicle’s wiring harness. With a wiring harness length of 10.24 inches, this sensor fits the factory routing without modification.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces emissions by providing accurate oxygen level readings
• Prevents engine performance issues related to faulty sensors
• Resolves check engine light triggers caused by sensor failure
• Supports fuel economy by ensuring optimal sensor operation

Installation Notes and Tips

When installing the Denso 234-4261 oxygen sensor, ensure the engine is cool to avoid burns. Use the correct socket size for the 0.708-inch threaded sensor to prevent damage. Verify the connector gender matches the vehicle harness for a secure connection. Follow vehicle-specific torque specifications to avoid sensor or exhaust damage.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship to provide confidence in product reliability.