Bosch 004-542-08-18 Premium OE Oxygen Sensor

The Bosch 004-542-08-18 (Bosch part number 16747) is a premium OE-quality heated oxygen sensor designed for Mercedes-Benz vehicles. This emissions control sensor detects oxygen levels in the engine's exhaust, generating an electrical current that is sent to the engine computer and converted to an oxygen level reading.

Key Features:

• Premium oxygen sensor designed to improve fuel economy while reducing harmful emissions with true direct-fit OE connectors and harness for easy installation
• Exclusive double laser-welded stainless steel body is totally submersible and sealed tight to protect against damage from exhaust emissions
• Fast-acting heater optimizes sensor operation, allowing the oxygen sensor to reach its operating temperature within seconds for optimum performance
• Pre-coated threads with anti-seize compound right out of the box for hassle-free installation
• 100% factory tested for full functionality to ensure every sensor meets Bosch's rigorous standards for quality and performance
• 4-wire heated sensor with 18mm threaded mounting and 470mm (18.5 inch) wire length

Technical Specifications:

• Thread Diameter: 18mm
• Wire Length: 470mm (18.5 inches)
• Number of Wires: 4
• Material: Zirconium
• Sensor Type: Thimble
• Connector Type: OE Type
• Heated: Yes

This oxygen sensor is commonly used as a downstream or rear oxygen sensor position on various Mercedes-Benz models. Cross-reference numbers include 0045420818, A0045420818, 028851167475, and 16747. Bosch invented the automotive oxygen sensor and remains the world's leading supplier of original equipment oxygen sensors.