URO 11727571591 Secondary Air Injection Pump

Overview of URO Secondary Air Injection Pump for BMW X3 and Z4

The URO Secondary Air Injection Pump (Part Number 11727571591) is designed specifically for BMW X3 and Z4 models. This component plays a critical role in the emission control system by helping reduce harmful exhaust emissions during cold starts.

• Inside diameter: 22.42 mm
• Wiring harness length: 270 mm
• One hose connector with 28.5 mm outside diameter
• Pressure contact terminal type with two male terminals
• Two wires and one male connector for secure electrical connection
• Durable PA6 GF30 housing material for long-lasting performance
• Mounting hardware included for straightforward installation
• No pulley included

Detailed Product Description

This URO secondary air injection pump is engineered to meet the specifications required by BMW X3 and Z4 vehicles. The pump features a 22.42 mm inside diameter and a hose connector with a 28.5 mm outside diameter, ensuring proper fit and function within the air injection system. The wiring harness length of 270 mm provides adequate reach for installation, while the pressure contact terminal type with two male terminals ensures reliable electrical connectivity. Constructed with a PA6 GF30 housing, the pump offers resistance to heat and mechanical stress, contributing to its durability in demanding engine environments.

Purpose and Common Applications

• Supports the secondary air injection system to reduce cold start emissions
• Helps prevent catalytic converter damage by promoting efficient exhaust gas oxidation
• Addresses issues related to failed or weak air injection pumps causing check engine lights
• Improves overall emission control system performance in BMW X3 and Z4 models
• Replaces faulty or worn secondary air injection pumps to restore proper function

Installation Notes and Tips

When installing the URO secondary air injection pump (11727571591), ensure the wiring harness is properly connected using the two-wire, male connector setup. Verify the hose connector fits securely with the 28.5 mm outside diameter hose. The included mounting hardware facilitates a secure fit; however, confirm all connections are tight to prevent air leaks. Avoid using a pulley as this pump does not include one. Follow manufacturer torque specifications and safety procedures during installation.

Quality Assurance and Warranty

URO parts are manufactured to meet OEM standards for fit, form, and function. The PA6 GF30 housing material provides enhanced durability under typical operating conditions. While specific warranty details are not provided here, URO products generally come with a limited warranty covering defects in materials and workmanship. For exact warranty terms, refer to the product documentation or contact the distributor.