URO 11727555681 Secondary Air Injection Pump Hose

Secondary Air Injection Hose for BMW

This URO secondary air injection pump hose is a direct replacement for the split OE hose used in the air injection system. It restores airflow from the pump to the valve so the emissions system can operate as intended on BMW 325Ci, 325i, 325xi, 330Ci, 330i, and 330xi applications.

• U-shaped hose with 0.63 in. inside diameter and 8.5 in. length
• Made from AEM material for heat and vapor resistance
• Black finish for OE-style appearance
• No clamps required
• Guaranteed fitment for listed BMW applications
• Part number 11727555681 for easy identification

OE-Style Replacement Hose

Built for the secondary air injection system, this hose replaces the original BMW pump-to-valve hose when the OE part has split, hardened, or cracked. The U-shaped design and AEM construction help it withstand engine heat as well as oil and fuel vapor exposure, supporting proper hydrocarbon emissions control. This part cross-references Genuine 11727555681 for the same application. Use 11727555681 when searching for a BMW secondary air injection pump hose replacement.

Vehicle Fitment

• Fits 2003-2006 BMW 325Ci, Pump to Valve
• Fits 2004-2006 BMW 330Ci, Pump to Valve
• Fits 2003-2005 BMW 325i, Pump to Valve
• Fits 2004-2005 BMW 325xi, Pump to Valve
• Fits 2004-2005 BMW 330i, Pump to Valve
• Fits 2004-2005 BMW 330xi, Pump to Valve
• Fits 2003 BMW 325Ci, Pump to Valve, production date range from 03/03
• Fits 2003 BMW 325i, Pump to Valve, production date range from 03/03
• Fits 2003 BMW 325xi, Pump to Valve, production date range from 03/03
• Fits 2003 BMW 330Ci, Pump to Valve, production date range from 03/03
• Fits 2003 BMW 330i, Pump to Valve, production date range from 03/03
• Fits 2003 BMW 330xi, Pump to Valve, production date range from 03/03

Common Problems It Can Solve

• Cracked or split secondary air injection pump hose
• Loss of airflow between the pump and valve
• Reduced secondary air injection system function
• Emissions-related fault conditions tied to hose leakage
• Heat- and vapor-related hose deterioration

Installation Notes

Confirm the hose routing and dimensions before installation. This pump-to-valve hose is specified for BMW secondary air injection applications and does not require clamps according to the listed attributes. Verify the vehicle build date for 2003 models, since fitment begins from 03/03 on the listed applications.

Quality Assurance

URO backs this replacement hose with a 24 Month Unlimited Mileage Warranty. The part is engineered as a fitment-verified replacement for the OE air injection pump hose and uses material selected to resist cracking from engine heat and oil or fuel vapor exposure.