Denso 234-4122 Oxygen Sensor - Downstream or Upstream

Overview of the Denso OE Style Oxygen Sensor 234-4122

The Denso OE Style Oxygen Sensor 234-4122 is designed specifically for select Acura and Honda models, including the Accord, Civic, EL, and RSX. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.

• Heated sensor type for faster activation
• Specific fit for Acura and Honda vehicles
• Threaded mounting type with 0.708-inch thread diameter
• Four-wire design with female connector
• Wiring harness length of 21.26 inches for proper installation

Detailed Features and Specifications

This oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions sooner after engine start. The 21.26-inch wiring harness length provides adequate reach for installation in the exhaust system of compatible vehicles. With a female connector and four wires, this sensor integrates seamlessly with the vehicle’s existing wiring harness. The threaded mounting type with a 0.708-inch diameter ensures a secure and precise fit in the exhaust manifold or pipe.

About the Denso OE Style Product Line

The OE Style line from Denso is engineered to meet original equipment specifications, providing a direct replacement for factory-installed parts. This ensures compatibility and reliable performance for emission control components like oxygen sensors. The OE Style 234-4122 oxygen sensor maintains the quality and fitment standards expected by Acura and Honda vehicles, supporting proper engine management and emissions compliance.

Compatible Vehicles and Common Applications

• Acura Accord
• Acura RSX
• Honda Civic
• Honda EL

This sensor is designed to address issues such as:

• Check engine light triggered by faulty oxygen sensor
• Poor fuel economy due to incorrect air-fuel mixture readings
• Increased emissions and failed emissions tests
• Engine performance problems like rough idling or hesitation

Installation Notes and Tips

When installing the Denso 234-4122 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. The 21.26-inch wiring length allows for flexible routing, but verify connector compatibility before installation. Thread the sensor carefully to prevent cross-threading and tighten to manufacturer torque specifications.

Quality Assurance and Warranty

Denso oxygen sensors are manufactured to meet strict quality standards and are tested for durability and performance. The OE Style 234-4122 part number is backed by Denso’s quality assurance processes, ensuring reliable operation in Acura and Honda vehicles. Warranty coverage details should be confirmed with the parts provider or vehicle manufacturer.