Denso 234-4805 Oxygen Sensor - Downstream Right

Overview of Denso OE Style Oxygen Sensor 234-4805

The Denso OE Style Oxygen Sensor 234-4805 is designed specifically for Toyota 4Runner models, providing precise emissions control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a 7.87-inch wiring harness for a secure and accurate fit.

• Heated oxygen sensor for faster response times
• Specific fit for Toyota 4Runner vehicles
• 7.87-inch wiring harness length for optimal installation
• Threaded mounting with 0.708-inch thread diameter
• Four-wire design with male connector for reliable connectivity

Detailed Features and Specifications

The Denso 234-4805 oxygen sensor is engineered with a heated sensor element to ensure quicker activation and improved fuel efficiency. Its specific fitment to Toyota 4Runner models guarantees compatibility and reduces installation complexity. The sensor includes a 7.87-inch wiring harness, allowing for proper routing and connection within the vehicle’s emission system. Featuring a male connector and four wires, this sensor supports accurate signal transmission to the engine control unit. The threaded mounting type with a 0.708-inch diameter ensures a secure and leak-free installation.

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering replacement parts that closely match original equipment specifications. This oxygen sensor maintains the quality and fitment standards expected from factory-installed components, making it a reliable choice for maintaining the emission control system of your Toyota 4Runner. The OE Style designation indicates that this sensor is designed to meet or exceed OEM requirements for performance and durability.

Common Applications and Problem Resolution

• Restores accurate oxygen level readings for optimal air-fuel mixture
• Helps resolve rough idling and engine hesitation issues
• Reduces increased emissions and failed emissions tests
• Improves fuel economy by ensuring proper combustion
• Eliminates check engine light codes related to oxygen sensor faults

Installation Notes and Tips

When installing the Denso 234-4805 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 0.708-inch threaded sensor to prevent damage. Verify the four-wire connector is securely attached and routed away from heat sources or moving parts. Proper torque specifications should be followed to avoid sensor or exhaust system damage.

Quality Assurance and Warranty

Denso oxygen sensors undergo rigorous testing to meet strict quality standards. The OE Style 234-4805 sensor is manufactured to provide consistent performance and durability. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship to support long-term reliability.