Genuine 11721438813 Secondary Air Injection Pump Filter

Reliable Secondary Air Injection Pump Filter for BMW Models

The Genuine Secondary Air Injection Pump Filter (Part Number 11721438813) is designed specifically for select BMW vehicles, including the 325Ci, 325i, 325xi, 330Ci, 330i, and 330xi. This filter helps maintain optimal emission control system performance by protecting the secondary air injection pump from contaminants.

• Compatible with BMW 325Ci, 325i, 325xi, 330Ci, 330i, and 330xi models
• Genuine part ensuring precise fit and reliable function
• Protects the secondary air injection pump from debris and contaminants
• Maintains emission control system efficiency
• Part Number 11721438813 for accurate identification

Product Details and Compatibility

This Genuine Secondary Air Injection Pump Filter is engineered to meet the exact specifications of BMW emission control systems. It is compatible with multiple BMW 3 Series variants, including the 325Ci, 325i, 325xi, 330Ci, 330i, and 330xi, ensuring a proper fit and function. The filter plays a critical role in preventing dirt and particles from entering the secondary air injection pump, which is essential for reducing harmful emissions during engine startup.

Purpose and Common Issues Addressed

• Prevents clogging and damage to the secondary air injection pump
• Helps reduce exhaust emissions by supporting the air injection system
• Mitigates rough engine starts caused by faulty air injection components
• Reduces the risk of check engine light activation related to emission control
• Maintains overall emission system reliability and compliance

Installation Notes and Tips

Installation of the Genuine Secondary Air Injection Pump Filter (11721438813) should be performed following BMW service guidelines. Ensure the engine is cool before beginning work. Remove the old filter carefully to avoid debris entering the system, and verify the new filter seats properly to prevent air leaks. It is recommended to inspect the secondary air injection pump and related hoses during replacement for any signs of wear or damage.

Quality Assurance and Warranty

As a Genuine BMW part, this Secondary Air Injection Pump Filter meets OEM standards for quality and durability. It is manufactured to provide consistent performance and long service life. While specific warranty details may vary, Genuine parts typically come with a limited warranty covering defects in materials and workmanship when installed according to manufacturer instructions.