Walker 350-64070 Oxygen Sensor

OE-Style Oxygen Sensor for Toyota and Lexus

Walker Products 350-64070 is a specific-fit heated oxygen sensor engineered as an OE replacement for a wide range of Toyota and Lexus applications. It is built for the correct mounting position and diagnostic feedback expected by the ECU, helping restore accurate exhaust monitoring on the vehicles listed below.

• Heated oxygen sensor for faster operating temperature and stable signal output
• Specific-fit design for the listed Toyota and Lexus applications
• Threaded mounting type with 18.0 mm thread diameter
• 4-wire configuration with 20-gauge wiring
• Radiused polygon male connector for application-specific fitment
• Wiring harness length: 12.32 in.; overall length: 15.87 in.

Walker Products Aftermarket Line

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors built for direct replacement use. Part number 350-64070 follows that approach with application-specific fitment, connector design, and sensor positioning to match the vehicle’s original setup.

Detailed Product Overview

This oxygen sensor is designed for vehicles that rely on precise exhaust feedback to manage fuel delivery and emissions control. It is a direct replacement choice for models such as the Toyota Camry, Toyota Tacoma, Lexus ES350, and Lexus RX350, including multiple upstream right, upstream front, upstream rear, upstream left, and downstream rear applications. Walker Products 350-64070 is also listed for additional Toyota and Lexus platforms across model years from 2002 through 2025.

This part cross-references no listed aftermarket part numbers in the provided data.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rough running caused by inaccurate air-fuel feedback
• Higher fuel consumption from incorrect ECU input
• Elevated exhaust emissions from a failing sensor
• Fault codes tied to the affected sensor circuit or related systems

Installation Notes and Tips

Confirm the exact position before installation, since this part is listed for multiple upstream and downstream locations. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before replacement. Verify thread size, connector shape, and harness length against the original sensor to ensure proper routing and fit.

Quality Assurance

Walker Products states that its engine management sensors are developed as OE replacement parts and manufactured under Automotive ISO9001/TS 16949 certification standards. The brand has supplied engine management and fuel system components since 1946.