Denso 234-4700 Oxygen Sensor - Downstream, Downstream Right or Upstream

Reliable Oxygen Sensor for BMW, Nissan, Mercedes-Benz, and More

The Denso Universal Oxygen Sensor 234-4700 is engineered to provide accurate emissions monitoring across a wide range of vehicles including BMW, Nissan, Mercedes-Benz, and Subaru models. Designed with a heated sensor element and universal fitment, this oxygen sensor supports efficient engine performance and emissions control.

• Heated oxygen sensor for faster response times
• Universal fit compatible with multiple makes and models
• Threaded mounting type with 0.708 inch thread diameter
• 11.77-inch wiring harness length for flexible installation
• Four-wire design for reliable signal transmission

About the Denso Universal Product Line

The Denso Universal line offers versatile emission control components designed to fit a broad range of vehicles. This oxygen sensor from the Universal line combines adaptability with Denso's quality standards, making it suitable for various applications including BMW 535i, Nissan Altima, and Mercedes-Benz C220 models. The universal design simplifies replacement without compromising sensor performance.

Technical Details and Features

This oxygen sensor features a heated sensor type that ensures quicker activation and more accurate readings shortly after engine start. The threaded mounting type with a 0.708-inch diameter allows secure installation in the exhaust system. With four wires and an 11.77-inch wiring harness length, it supports proper electrical connections and signal integrity. The universal fitment covers a wide range of vehicles such as the BMW 735iL, Nissan Pathfinder, and Subaru Forester, making it a practical choice for emission control repairs.

Common Applications and Issues Addressed

• Restores accurate air-fuel mixture readings for optimal engine performance
• Helps resolve check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing precise emissions data
• Reduces harmful exhaust emissions to meet regulatory standards
• Prevents engine hesitation and rough idling caused by faulty sensors

Installation Notes and Tips

Ensure the engine and exhaust system are cool before installation to avoid injury. The 0.708-inch threaded sensor mounts directly into the exhaust manifold or pipe. Use appropriate anti-seize compound on the threads to facilitate future removal. Verify the four-wire connector matches the vehicle’s wiring harness for proper electrical connection. The 11.77-inch wiring harness length provides flexibility but confirm routing to avoid heat exposure or damage.

Quality Assurance and Warranty

Denso oxygen sensors are manufactured to meet OEM specifications and undergo rigorous testing for durability and accuracy. The 234-4700 part number is backed by Denso’s quality standards, ensuring reliable performance in emission control systems. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.