Bosch 13891 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Mitsubishi Galant

The Bosch Actual OE Oxygen Sensor 13891 is designed specifically for Mitsubishi Galant models, ensuring precise emission control and optimal engine performance. This narrow-band heated oxygen sensor provides accurate air-fuel mixture readings to help maintain efficient combustion.

• Specific fit for Mitsubishi Galant vehicles
• Heated narrow-band oxygen sensor for fast response
• Threaded mounting type with 18 mm thread diameter
• 18.9-inch wiring harness length with 4-wire configuration
• Durable metal housing with steel finish
• Round male connector with 4 female terminals
• Overall length of 27 inches for proper installation
• Standard replacement grade for reliable performance
• Includes wiring harness for direct connection
• 22 mm hex size for easy installation

About the Bosch Actual OE Oxygen Sensor Line

The Bosch Actual OE Oxygen Sensor product line focuses on delivering direct-fit replacement sensors that meet original equipment specifications. This ensures compatibility and performance consistency for vehicles like the Mitsubishi Galant. The 13891 sensor maintains factory-level accuracy and durability, supporting emission control systems effectively.

Product Details and Specifications

This Bosch oxygen sensor features a narrow-band heated design, which allows it to quickly reach operating temperature and provide accurate oxygen level readings. The sensor’s metal housing and steel finish offer durability against harsh engine conditions. It includes a threaded mounting type with an 18 mm thread diameter and a 22 mm hex size for straightforward installation. The wiring harness is 18.9 inches long and includes four wires with a round male connector and four female terminals, ensuring a secure and reliable electrical connection. The overall length of the sensor is 27 inches, with a 17.7-inch length from the sealing surface to the end of the connector, designed for precise fitment in Mitsubishi Galant models.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for efficient combustion
• Helps resolve check engine light triggers related to oxygen sensor faults
• Improves fuel economy by ensuring proper sensor feedback
• Reduces harmful emissions by maintaining correct exhaust gas monitoring
• Prevents engine performance issues caused by faulty oxygen sensors

Installation Notes and Tips

When installing the Bosch 13891 oxygen sensor on a Mitsubishi Galant, ensure the threaded sensor is securely tightened using a 22 mm hex socket. Verify the wiring harness length and connector type match the vehicle’s factory setup to avoid connection issues. The sensor’s heated design requires proper electrical connection to the vehicle’s wiring harness for optimal operation. Avoid damaging the sensor tip during installation and follow manufacturer torque specifications.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, providing reliable performance and durability. The Actual OE Oxygen Sensor line is engineered to match original equipment specifications, ensuring consistent operation. While specific warranty details for part number 13891 may vary, Bosch typically offers coverage against defects in materials and workmanship to support long-term use.