Denso 234-4683 Oxygen Sensor - Downstream

Overview of the Denso OE Style Oxygen Sensor 234-4683

The Denso OE Style Oxygen Sensor 234-4683 is designed specifically for select BMW and Land Rover models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a 4-wire configuration for reliable operation.

• Heated oxygen sensor for faster response times
• Specific fit for BMW and Land Rover vehicles
• Threaded mounting with 0.708 inch thread diameter
• 4-wire design with female connector
• Wiring harness length of 38.78 inches for proper installation

Detailed Product Description

This Denso oxygen sensor, part number 234-4683, belongs to the OE Style product line, which focuses on delivering original equipment quality and fitment. The OE Style line is engineered to meet or exceed factory specifications, providing a direct replacement for the original sensor in your vehicle. The heated sensor type allows for quicker activation and more accurate readings, which is critical for maintaining proper air-fuel mixture and reducing emissions.

The sensor’s 4-wire design includes a female connector, ensuring compatibility with the vehicle’s wiring harness. The threaded mounting type with a 0.708 inch diameter allows for secure installation in the exhaust system. With a wiring harness length of 38.78 inches, this sensor provides sufficient reach for the specified BMW and Land Rover models.

Compatible Vehicles and Applications

• BMW 320i, 323Ci, 323i, 325Ci, 325i, 325xi, 328Ci, 328i, 330Ci, 330i, 330xi, 525i, 528i, 530i
• Land Rover Range Rover, X3, X5, Z3, Z4

Common Issues Addressed by This Oxygen Sensor

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

Installation Notes and Tips

Ensure the vehicle is cool before attempting installation to avoid burns. Use appropriate tools to remove the old sensor and install the new one with the correct torque to prevent damage. Verify the connector type matches the vehicle harness; this sensor uses a female connector. The 38.78-inch wiring harness length provides flexibility during installation but avoid excessive bending or stretching of the wires.

Quality Assurance and Warranty

Denso’s OE Style oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship. Refer to the product documentation or supplier for exact warranty terms.