Bosch 13925 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Mercedes-Benz Models

The Bosch Actual OE Oxygen Sensor 13925 is designed specifically for select Mercedes-Benz vehicles, including the 260E, 300CE, 300E, 300SE, 300SEL, 300TE, and 560SL. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance.

• Brand: Bosch, Brand Line: Actual OE Oxygen Sensor
• Part Number: 13925
• Wiring Harness Length: 27 inches
• Terminal Type: Blade pin with 3 terminals
• Connector Shape: Rectangle/round, Male connector
• Overall Length: 30.7 inches
• Mounting Type: Threaded with 18 mm thread diameter
• Heated narrow-band oxygen sensor for precise readings
• Housing Material: Durable metal with steel finish
• Wiring Harness Included

About the Bosch Actual OE Oxygen Sensor Line

The Actual OE Oxygen Sensor line by Bosch is engineered to meet original equipment specifications, providing a direct replacement for factory-installed sensors. This ensures compatibility and reliable performance for emission control systems in specific vehicle applications. The 13925 sensor maintains the integrity of your Mercedes-Benz’s emission system by delivering accurate air-fuel mixture data to the engine control unit.

Detailed Product Description

This Bosch oxygen sensor features a heated narrow-band design, which allows for faster sensor warm-up and improved accuracy in measuring oxygen levels in the exhaust gases. The sensor includes a 27-inch wiring harness with a blade pin terminal type and a male connector shaped in a rectangle/round form for secure and precise connections. The threaded mounting type with an 18 mm diameter ensures a proper fit in the exhaust manifold or pipe. Constructed with a metal housing and steel finish, this sensor is built to withstand harsh operating conditions. The overall length of 30.7 inches and the included wiring harness facilitate straightforward installation in compatible Mercedes-Benz models.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for improved fuel efficiency
• Helps resolve check engine light triggers related to oxygen sensor faults
• Reduces emissions by ensuring proper air-fuel mixture readings
• Prevents rough idling and engine performance issues caused by faulty sensors
• Supports compliance with emission regulations for Mercedes-Benz 260E, 300CE, 300E, 300SE, 300SEL, 300TE, and 560SL

Installation Notes and Tips

When installing the Bosch 13925 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use a 22 mm hex socket for proper tightening without damaging the sensor. The wiring harness length of 27 inches provides flexibility for routing, but avoid sharp bends or contact with hot exhaust components. Confirm the connector shape and terminal type match the vehicle’s harness to ensure a secure electrical connection. No mounting bracket is included, so use the existing mounting point on the vehicle.

Quality Assurance and Warranty

Bosch manufactures the Actual OE Oxygen Sensor 13925 to meet stringent quality standards, ensuring durability and reliable performance. This sensor is a standard replacement part designed to match original equipment specifications. While specific warranty details may vary, Bosch typically offers coverage against manufacturing defects to provide confidence in the product’s longevity and function.