Bosch 15819 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Mercury Quest and Nissan Villager

The Bosch Actual OE Oxygen Sensor 15819 is designed specifically for Mercury Quest and Nissan Villager models. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases effectively.

• Wiring harness length: 6.7 inches
• Threaded mounting type with 18 mm thread diameter
• Blade terminal type with 3 male terminals
• Oblong male connector with 3 wires included
• Heated narrow-band oxygen sensor for precise readings
• Steel finish housing with 22 mm hex size for installation
• Overall length of 10.4 inches, sealing surface to connector length 9.2 inches

About the Bosch Actual OE Oxygen Sensor Line

The Bosch Actual OE Oxygen Sensor product line focuses on providing standard replacement sensors that meet original equipment specifications. This ensures compatibility and reliable performance for specific vehicle applications, such as the Mercury Quest and Nissan Villager. The 15819 part number is engineered to deliver consistent sensor response and durability under typical operating conditions.

Detailed Product Description

This Bosch oxygen sensor features a heated narrow-band design, which allows it to reach operating temperature quickly for accurate air-fuel mixture readings. The sensor’s metal housing and threaded mounting provide a secure fit and long-lasting durability. With a 6.7-inch wiring harness and an oblong male connector, installation is straightforward and compatible with the vehicle’s existing wiring. The 3-wire configuration supports proper sensor function and communication with the engine control unit.

Common Applications and Issues Addressed

• Helps reduce vehicle emissions by monitoring exhaust gases
• Prevents engine performance issues related to incorrect air-fuel mixture
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing accurate sensor data
• Supports proper catalytic converter operation

Installation Notes and Tips

Ensure the vehicle is cool before installation 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 specifications. Thread the sensor carefully to avoid cross-threading and tighten to manufacturer torque specifications. No mounting bracket is included, so use the existing mounting location on the exhaust system.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards and provide reliable performance. The Actual OE Oxygen Sensor 15819 is a standard replacement part designed to meet original equipment specifications. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship for a defined period.