Product Details & Fitment
Part number 3W0131128N is a genuine Bentley secondary air injection connecting pipe designed for the Cylinder 1-6 outlet. This OEM component forms part of the Secondary Air Injection (SAI) system, directing fresh air into the exhaust system during cold starts to help reduce emissions and improve engine efficiency.
Manufactured to Bentley OEM specifications, this connecting pipe provides factory-correct fitment, exceptional durability, and reliable airflow. Its precision-engineered construction ensures proper operation of the Secondary Air Injection system while withstanding the high temperatures found in the engine compartment.
Replacing a damaged or deteriorated connecting pipe helps restore proper airflow, maintain emissions system performance, and support efficient engine operation. This genuine Bentley component is designed to deliver the quality, fit, and reliability expected from the original factory-installed part.
Designed as a direct replacement for the original component, part number 3W0131128N ensures dependable long-term performance and seamless integration with the factory Secondary Air Injection system.
Please verify compatibility with your vehicle before ordering. Professional installation is recommended, and all related hoses, valves, and Secondary Air Injection components should be inspected during replacement.




