Bosch 15246 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Lexus GS300

The Bosch Validated Oxygen Sensor 15246 is designed specifically for the Lexus GS300, ensuring precise emission control and optimal engine performance. This narrow-band heated oxygen sensor provides accurate air-fuel mixture readings to help maintain your vehicle’s efficiency and reduce emissions.

• Specific fit for Lexus GS300 models
• Heated narrow-band oxygen sensor for fast response
• Threaded mounting type with 18 mm thread diameter
• Includes 29.8-inch wiring harness with 4 wires and blade terminals
• Durable metal housing with steel finish
• Connector features a rectangular shape with male gender and 4 terminals
• Overall length of 33.5 inches for proper installation

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line focuses on delivering reliable emission control components that meet or exceed OEM specifications. This line is engineered to provide accurate sensor readings and durability under typical operating conditions. The 15246 oxygen sensor is part of this line, offering a standard replacement option with a heated narrow-band sensor type designed for specific vehicle applications like the Lexus GS300.

Product Details and Specifications

This Bosch oxygen sensor features a heated narrow-band sensor element that allows for quicker warm-up times and more accurate air-fuel ratio monitoring. The sensor’s metal housing and steel finish provide resistance to harsh engine environments. It includes a 29.8-inch wiring harness with four wires and blade-type terminals, ensuring secure electrical connections. The connector is rectangular and male with four terminals, matching the factory wiring harness for a direct fit. The sensor mounts via a threaded 18 mm diameter fitting, compatible with the Lexus GS300’s exhaust system. The overall length of 33.5 inches and a sealing surface to connector length of 32.3 inches facilitate proper placement and installation.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper engine management
• Helps resolve rough idling caused by faulty sensor readings
• Reduces increased emissions and failed emissions tests
• Improves fuel economy by maintaining correct air-fuel mixture
• Eliminates check engine light codes related to oxygen sensor faults

Installation Notes and Tips

When installing the Bosch Validated Oxygen Sensor 15246 on a Lexus GS300, ensure the sensor is threaded securely into the exhaust manifold or pipe using a 22 mm hex socket. Avoid over-tightening to prevent damage to the sensor or exhaust components. Connect the wiring harness firmly to the vehicle’s connector, verifying the rectangular male connector aligns properly with the factory harness. The included wiring harness length of 29.8 inches provides sufficient reach for most installation scenarios. No mounting bracket is included, so use the existing mounting points on the vehicle.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards and undergo validation testing to ensure reliable performance. The 15246 part is a standard replacement grade sensor designed to meet OEM specifications for the Lexus GS300. While specific warranty details are not provided here, Bosch typically offers limited warranties on their emission control sensors to cover defects in materials and workmanship.