Denso 234-4806 Oxygen Sensor - Downstream or Downstream Right

Overview of the Denso OE Style Oxygen Sensor 234-4806

The Denso OE Style Oxygen Sensor 234-4806 is designed specifically for Lexus GS300 models, providing precise emissions control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a 21.26-inch wiring harness, ensuring a direct fit and reliable operation.

• Heated oxygen sensor for accurate emissions feedback
• Specific fit for Lexus GS300 vehicles
• Threaded mounting with 0.708-inch thread diameter
• 21.26-inch wiring harness length with 4 wires
• Male connector for secure electrical connection

Detailed Features and Specifications

The Denso 234-4806 oxygen sensor is engineered with a heated sensor element to provide faster response times and improved fuel efficiency. Its 4-wire configuration supports both the sensor signal and heater circuit, essential for maintaining optimal sensor temperature. The 0.708-inch threaded mounting ensures a secure and leak-free installation in the exhaust system. With a 21.26-inch wiring harness, this sensor offers sufficient length for proper routing and connection within the Lexus GS300 engine bay.

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering replacement parts that match original equipment specifications. This ensures compatibility and performance consistent with factory-installed components. The 234-4806 oxygen sensor maintains the quality and fitment standards expected from Denso’s OE Style range, making it a reliable choice for Lexus GS300 owners seeking direct-fit emission control sensors.

Common Applications and Problem Resolution

• Restores accurate oxygen level readings for engine control units
• Helps resolve rough idling and poor fuel economy issues
• Addresses check engine light triggers related to oxygen sensor faults
• Improves emissions compliance by maintaining proper air-fuel mixture
• Prevents damage to catalytic converters caused by faulty sensor data

Installation Notes and Tips

When installing the Denso 234-4806 oxygen sensor on a Lexus GS300, ensure the sensor is threaded securely without over-tightening to avoid damage. Verify the wiring harness length and connector gender match the vehicle’s harness for a proper electrical connection. It is recommended to use anti-seize compound on the threads to facilitate future removal. Always disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Denso oxygen sensors, including the 234-4806, are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. This part is backed by Denso’s quality assurance protocols, providing confidence in its reliability for emission control applications. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.