Bosch 13613 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Toyota 4Runner, Tacoma, and Tundra

The Bosch Validated Oxygen Sensor 13613 is designed specifically for select Toyota models, including the 4Runner, Tacoma, and Tundra. This heated wide-band oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions control.

• Heated oxygen sensor for faster activation
• Specific fit for Toyota 4Runner, Tacoma, and Tundra
• Wide-band sensor type for precise air-fuel ratio monitoring
• Includes 10-inch wiring harness with 4 wires and blade terminals
• Durable metal housing with 22 mm hex size and 18 mm thread diameter
• Square male connector with flange mounting type
• Standard replacement grade for reliable performance

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line focuses on delivering sensors that meet strict quality and performance standards. These sensors undergo rigorous validation to ensure compatibility and durability for specific vehicle applications. The 13613 oxygen sensor is part of this line, providing a dependable replacement option for Toyota 4Runner, Tacoma, and Tundra models requiring precise emission control components.

Product Details and Specifications

This Bosch oxygen sensor features a heated element to reduce warm-up time, enabling quicker sensor response and improved engine management. The wide-band sensor type allows for accurate measurement of oxygen levels in the exhaust, which is critical for maintaining efficient combustion and reducing emissions. The sensor includes a 10-inch wiring harness with four wires and blade terminals, designed with a square male connector for secure electrical connections. Its metal housing and flange mounting type ensure a robust fit, while the 22 mm hex size and 18 mm thread diameter match OEM specifications. The overall length of 13.4 inches and a wire length of 12.2 inches from sealing surface to connector end provide proper installation clearance.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for Toyota 4Runner, Tacoma, and Tundra
• Resolves engine performance problems related to faulty oxygen sensors
• Helps correct rough idling and poor fuel economy caused by sensor failure
• Supports emission system compliance by maintaining proper air-fuel ratios
• Eliminates check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Bosch Validated Oxygen Sensor 13613, ensure the vehicle is cooled down to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the sensor’s wiring harness length and connector type match the vehicle’s factory setup. Avoid damaging the sensor’s wiring during installation and confirm the flange mounting is secure to prevent exhaust leaks. It is recommended to clear any diagnostic trouble codes after installation to reset the engine control unit.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet OEM standards, providing reliable performance and durability. The Bosch Validated Oxygen Sensor 13613 is a standard replacement grade part designed for long-term use in Toyota 4Runner, Tacoma, and Tundra vehicles. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship to ensure customer confidence in their products.