BMW Secondary Air Injection Valve - Genuine BMW 11727553066

Ensure your BMW's emissions system operates at peak efficiency with this **Genuine BMW Secondary Air Injection Valve**. Also referred to as a Secondary Air Injection Pump Check Valve, this essential component (Part Number: 11727553066, also replaces OE number 11727523530) is crucial for controlling exhaust emissions.

It facilitates the proper function of your vehicle's Secondary Air Injection (SAI) system, which injects fresh air into the exhaust manifold during cold starts to help burn off excess hydrocarbons. This valve prevents exhaust gases from flowing back into the air pump, protecting the system and ensuring accurate air delivery for reduced pollutants.

As a Genuine BMW part, it guarantees a precise fit, superior quality, and reliable performance, restoring your vehicle's emission control system to factory specifications. This valve is compatible with various BMW 3-Series (E46) models including 325Ci, 325i, 325xi, 330Ci, 330i, 330xi, and X3 (E83) models equipped with M54 and M56 engines, primarily for vehicles manufactured from March 2003 onwards. Replace a failing valve to maintain compliance, clear check engine lights, and ensure optimal engine health.