Bosch 15730 Oxygen Sensor

Bosch Universal Oxygen Sensor 15730

Bosch Universal Oxygen Sensor 15730 is a narrow-band heated O2 sensor built with an OE-specification zirconia ceramic element and heater design. It uses Bosch SmartLink Posi-Lock connectors for a secure electrical connection and faster installation on a wide range of vehicles.

Compatible With many downstream and upstream applications across 2001-2018 vehicles, including Honda Civic, Chevrolet Silverado 1500, Subaru Outback, and Nissan Versa. The extended lead length adds flexibility when the original harness is damaged, shortened, or difficult to reach.

Key Features

• OE-specification Bosch zirconia sensing element and heater design
• SmartLink Posi-Lock connector system for solder-free installation
• Universal fit for broad vehicle coverage
• Heated narrow-band sensor for air-fuel-ratio feedback
• 23.3 in wiring harness length for added routing flexibility
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• 4-wire design with included wiring harness
• Reopenable connector system for adjustments during installation

Product Details

Bosch 15730 is part of the Universal Oxygen Sensor line, which focuses on OE-style sensor performance with a flexible connector solution. The SmartLink system is built for technicians who need a reliable way to adapt a universal O2 sensor to an existing harness without soldering, crimping, or specialty tools. That makes it a practical choice for repair work on vehicles such as the Chevrolet Equinox, Mazda 6, and Infiniti Q50 where direct-fit options may not be available or where harness repair is needed.

This narrow-band heated oxygen sensor provides the feedback the engine control system uses to monitor exhaust oxygen content and maintain proper air-fuel control. Bosch 15730 is a standard replacement part with a metal housing, threaded mount, and round connector shape for straightforward service replacement.

This part cross-references 46823880 for the same application.

What It Helps Fix

• Check engine light related to oxygen sensor performance
• Slow or inaccurate air-fuel-ratio feedback
• Damaged, shortened, or hard-to-match sensor wiring
• Failed heater circuit in a heated O2 sensor
• Rough running caused by a worn downstream or upstream sensor

Installation Notes

• Verify the sensor position before ordering: upstream, downstream, left, right, front, or rear applications are listed separately.
• Match the connector orientation and wire routing to the vehicle harness before final connection.
• Use the threaded mount and correct 18 mm oxygen sensor socket for removal and installation.
• Follow the vehicle service procedure for clearing fault codes after replacement.
• Confirm the application against the exact year, make, model, and emissions configuration shown in the fitment list.

Quality Assurance

Bosch builds this sensor using OE-level base sensor construction and a connector system engineered for secure, high-temperature, weather-resistant electrical connections. The reusable SmartLink design supports accurate adaptation during installation while maintaining Bosch’s OE application standards.