Denso 234-4400 Oxygen Sensor

Reliable Oxygen Sensor for Lexus and Toyota Vehicles

The Denso OE Style Oxygen Sensor 234-4400 is designed specifically for select Lexus and Toyota models, including the Prius, Highlander, and RX series. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance.

• Heated sensor type for faster response times
• Specific fit for Lexus and Toyota models such as CT200h, Prius, and Sienna
• 22.32-inch wiring harness length for precise installation
• Four-wire configuration with male connector
• Threaded mounting with 0.708-inch thread diameter

About the Denso OE Style Product Line

The OE Style line from Denso offers direct replacement parts engineered to meet original equipment specifications. The 234-4400 oxygen sensor maintains factory-level quality and fitment, ensuring compatibility and reliable performance for your Lexus or Toyota vehicle.

Product Details and Specifications

This oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 22.32-inch wiring harness length provides flexibility during installation, while the four-wire design supports accurate signal transmission. The male connector and threaded mounting type with a 0.708-inch diameter ensure a secure and precise fit in the exhaust system.

Common Applications and Issues Addressed

• Compatible with Lexus CT200h, RX350, RX450h, and Toyota Prius, Highlander, Sienna models
• Helps resolve poor fuel economy caused by faulty oxygen sensors
• Reduces engine performance issues related to incorrect air-fuel mixture readings
• Assists in lowering harmful emissions for emissions test compliance
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. The threaded mounting type requires proper torque to avoid damage to the sensor or exhaust components. Verify the connector gender matches the vehicle harness for a secure electrical connection. This sensor is a specific fit part, so confirm compatibility with your Lexus or Toyota model before installation.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards, providing reliable performance and durability. While specific warranty details are not provided here, Denso products typically come with manufacturer-backed warranties to protect against defects in materials and workmanship.