Denso 234-4476 Oxygen Sensor - Downstream

Overview of Denso OE Style Oxygen Sensor 234-4476

The Denso OE Style Oxygen Sensor 234-4476 is designed specifically for select Lexus, Scion, and Toyota models, including the Corolla iM, HS250h, and iM. This heated oxygen sensor features a threaded mounting type and a 13.86-inch wiring harness, ensuring precise fitment and reliable performance.

• Heated oxygen sensor for accurate emissions control
• Specific fit for Lexus, Scion, and Toyota models
• Threaded mounting with 0.708-inch thread diameter
• 13.86-inch wiring harness length with 4 wires
• Male connector for secure electrical connection

Detailed Product Features and Specifications

The Denso 234-4476 oxygen sensor is engineered with a heated sensor element to provide faster response times and improved fuel efficiency. Its specific fitment ensures compatibility with the Lexus HS250h, Scion iM, and Toyota Corolla iM models, maintaining factory-level performance. The sensor includes a 13.86-inch wiring harness with four wires and a male connector, facilitating straightforward installation and reliable electrical connectivity. The threaded mounting type with a 0.708-inch diameter allows for secure attachment in the exhaust system.

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering oxygen sensors that match original equipment specifications. This ensures that the 234-4476 sensor meets the exact requirements for fit, form, and function on compatible Lexus, Scion, and Toyota vehicles. The OE Style sensors are designed to integrate seamlessly with the vehicle’s emission control system, supporting optimal engine performance and emissions compliance.

Common Applications and Issues Addressed

• Restores accurate oxygen level readings for proper air-fuel mixture
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel economy by ensuring efficient combustion
• Reduces harmful emissions by maintaining proper sensor function
• Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

• Ensure vehicle compatibility with Lexus HS250h, Scion iM, or Toyota Corolla iM before installation
• Use appropriate tools for threaded mounting with 0.708-inch diameter
• Handle the sensor wiring harness carefully to avoid damage to the 4-wire connector
• Verify the male connector securely mates with the vehicle’s wiring harness
• Follow manufacturer torque specifications to prevent sensor damage

Quality Assurance and Warranty

Denso oxygen sensors, including the 234-4476, are manufactured to meet strict quality standards for durability and performance. The OE Style product line ensures that each sensor undergoes rigorous testing to comply with original equipment specifications. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.