Bosch 15664 Oxygen Sensor - Downstream, Upstream, Upstream Left or Upstream Right

Reliable Oxygen Sensor for Ford, Lincoln, Mazda, and Mercury Vehicles

The Bosch Actual OE Oxygen Sensor 15664 is designed to provide accurate air-fuel mixture readings for improved engine performance and emissions control. Specifically engineered for select Ford, Lincoln, Mazda, and Mercury models, this narrow-band heated oxygen sensor ensures precise monitoring and efficient operation.

• Heated narrow-band oxygen sensor for accurate emissions control
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes 8.9-inch wiring harness with 4 male blade terminals and round male connector
• Standard replacement grade with metal housing and steel finish
• Compatible with Ford F-150, Explorer, Ranger, Lincoln Navigator, Mazda B2300, and more

About the Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line is designed to meet original equipment specifications, providing a direct fit and reliable performance. This product line focuses on delivering sensors that match factory standards for fitment, wiring, and functionality, ensuring compatibility with specific vehicle models. The 15664 sensor maintains these standards with its precise wiring harness length, terminal configuration, and heated sensor technology.

Detailed Product Description and Specifications

This Bosch oxygen sensor features a narrow-band heated sensor type, which helps maintain optimal engine combustion by accurately measuring oxygen levels in the exhaust gases. The sensor includes a threaded mounting type with an 18 mm thread diameter and a 22 mm hex size for secure installation. The wiring harness is 8.9 inches long and includes four wires with male blade terminals and a round male connector, ensuring a specific fit for your vehicle's wiring system. The sensor's metal housing and steel finish provide durability under high-temperature conditions. With an overall length of 12.2 inches and a wire length of 11 inches from the sealing surface to the connector end, this sensor is designed for precise fitment without modification.

Compatible Vehicles and Common Applications

• Ford F-150, F-150 Heritage, Explorer, Explorer Sport Trac, Expedition, Freestar, Ranger, Windstar, E-350 Super Duty
• Lincoln Navigator, Mark LT, Mountaineer
• Mazda B2300, B3000, B4000
• Mercury Mountaineer

This oxygen sensor is ideal for addressing issues such as poor fuel economy, rough idling, increased emissions, engine hesitation, and failed emissions tests.

Installation Notes and Tips

• Ensure the engine is cool before installation to avoid burns
• Use a 22 mm oxygen sensor socket for removal and installation
• Verify the wiring harness connector matches the vehicle’s original connector
• Do not overtighten; torque to manufacturer specifications
• Check for any exhaust leaks around the sensor mounting area after installation

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards and are designed for durability and reliable performance. The Actual OE Oxygen Sensor 15664 is a standard replacement part that maintains factory specifications. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship to ensure customer confidence in their product.