Denso 234-4069 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Toyota and Scion Vehicles

The Denso OE Style 234-4069 oxygen sensor is designed specifically for select Toyota and Scion models, including the Echo, xA, xB, and Yaris. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance.

• Heated sensor type for faster response times
• Specific fit for Toyota Echo, xA, xB, and Yaris models
• Threaded mounting type with 0.708-inch thread diameter
• 17.32-inch wiring harness length with 4 wires
• Male connector for secure electrical connection

About the Denso OE Style Product Line

The OE Style line from Denso offers direct replacement parts engineered to meet original equipment specifications. The 234-4069 oxygen sensor maintains factory-level fit, form, and function, providing a reliable solution for emission control systems in compatible Toyota and Scion vehicles.

Product Details and Specifications

This oxygen sensor features a heated element to reduce warm-up time, improving fuel efficiency and reducing emissions sooner after engine start. The 17.32-inch wiring harness length and 4-wire configuration support precise signal transmission. Its threaded mounting type with a 0.708-inch diameter ensures a secure and proper fit. The male connector design facilitates straightforward installation and reliable electrical connection.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for Toyota Echo, xA, xB, and Yaris
• Helps resolve check engine light triggers related to oxygen sensor faults
• Improves fuel economy by ensuring proper combustion control
• Reduces harmful emissions by maintaining correct sensor operation
• Prevents drivability issues such as rough idling or hesitation

Installation Notes and Tips

Ensure the vehicle is cool before installation to avoid injury. Use appropriate tools to remove the old sensor and install the Denso 234-4069 oxygen sensor by threading it securely into place. Verify the connector is fully engaged to maintain proper electrical contact. This sensor is designed for specific fitment, so confirm compatibility with your Toyota or Scion model before installation.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. While specific warranty details may vary, Denso parts typically come with a limited warranty covering defects in materials and workmanship.