URO 11721433959 Secondary Air Injection Pump

Reliable Secondary Air Injection Pump for BMW 525i, 528i, 530i

The URO Secondary Air Injection Pump (Part Number 11721433959) is designed to support the emission control system of select BMW models. Engineered with durable materials and precise specifications, this new pump ensures proper air injection to reduce harmful emissions effectively.

• Inside diameter of 22.88 mm for optimal airflow
• Single hose connector and one female connector for secure fitment
• Constructed with PA6 housing material for durability
• Three mounting holes for stable installation
• Grade type: Regular, new condition for reliable performance

Product Details and Specifications

This URO secondary air injection pump features a 22.88 mm inside diameter, allowing it to deliver the correct volume of air into the exhaust stream. The pump includes one hose connector and one female connector, designed to fit precisely with the existing air injection system components. Its PA6 housing material offers resistance to heat and corrosion, contributing to long-term durability. The pump mounts securely with three mounting holes, ensuring stable operation within the engine bay. This part is new and meets the regular grade type standard, making it a dependable replacement for BMW 525i, 528i, and 530i models.

Compatible Vehicles and Applications

This secondary air injection pump is compatible with the following BMW models:

• BMW 525i
• BMW 528i
• BMW 530i

It is specifically designed to maintain the efficiency of the emission control system by supplying secondary air to the exhaust manifold, helping to reduce emissions during cold starts and improve overall engine performance.

Common Issues Addressed by This Pump

• Reduced engine performance due to faulty air injection
• Check engine light triggered by secondary air system faults
• Failed emissions tests related to air injection system malfunctions
• Unusual exhaust odors caused by incomplete combustion
• Increased emissions during cold engine startup

Installation Notes and Tips

When installing the URO Secondary Air Injection Pump 11721433959, ensure all connectors are securely attached and the three mounting holes are properly aligned for stable fitment. Verify that the hose connector and female connector match the vehicle’s existing air injection system components. It is recommended to inspect related hoses and valves for wear or damage during installation to maintain system integrity.

Quality Assurance and Warranty

This secondary air injection pump is a new, regular grade replacement part manufactured with PA6 housing material for durability and reliability. While specific warranty details are not provided, URO parts are generally produced to meet OEM standards, ensuring consistent performance for BMW 525i, 528i, and 530i models.