Bosch 45-70-909 Premium Heated Oxygen Sensor

The Bosch 45-70-909 (also known as Bosch 16682) is a premium OE-quality oxygen sensor designed to monitor exhaust gas oxygen levels and optimize engine performance. As the original inventor of automotive oxygen sensors, Bosch delivers proven reliability backed by over 40 years of engineering expertise and more than 1 billion sensors produced worldwide.

Key Features:

• 4-wire heated narrow-band thimble-type sensor for fast operation
• 18mm thread diameter with 22mm hex size for secure installation
• 29-inch wire harness with direct-fit OE-style connector
• Zirconium ceramic element with double laser-welded stainless steel body
• Threads pre-coated with anti-seize compound for easy installation
• 100% factory tested with sealed, submersible construction
• Fast-acting heater reaches operating temperature within seconds

Technical Specifications:

• Mounting Type: Threaded
• Wire Length: 29 inches (737mm)
• Number of Wires: 4
• Connector Type: OE-style male blade terminals
• Thread Size: M18 x 1.5
• Weight: 0.29 lbs

This oxygen sensor helps maintain the correct air-fuel mixture for optimal combustion efficiency, reducing harmful emissions while improving fuel economy. The robust sensor design and sealed construction ensure long service life even in harsh exhaust conditions. Cross-references to OEM part numbers 4570909, 30637521, 9487146, and others.