URO 11721432867 Secondary Air Injection Hose - Pump To Valve

Secondary Air Injection Hose for BMW Z3

This URO secondary air injection hose restores the connection between the air injection pump and valve on select BMW Z3 models. Built from AEM material with an 18 mm inside diameter and 4 mm wall thickness, it is made to replace a split OE hose and help recover proper secondary air injection operation for emissions control.

Key Features

• Direct replacement secondary air injection hose for the pump-to-valve circuit
• AEM construction resists cracking from engine heat and exposure to oil and fuel vapor
• 18 mm inside diameter with 4 mm wall thickness
• Black finish for OE-style appearance
• Clamps required for installation
• URO 11721432867 replacement part number

Detailed Description

URO part number 11721432867 is a secondary air injection hose for the BMW Z3, designed for the pump to valve position. It replaces the original hose used in the air injection system and helps restore airflow needed for proper hydrocarbon emissions control. This hose is a practical OE-style solution when the original line has split, hardened, or deteriorated from heat and vapor exposure. Cross-reference part numbers include 11 72 1 432 867 and URO-013846 for the same application.

Compatible With 1997-2000 BMW Z3, pump to valve. Also fits 1998-1999 BMW Z3, pump to valve, production date range thru 08/98. Search terms such as BMW Z3 secondary air injection hose, BMW Z3 pump to valve hose, and URO 11721432867 air injection hose align with this application.

What It Helps Address

• Cracked or split secondary air injection hose
• Loss of airflow between the pump and valve
• Secondary air injection system faults related to hose leakage
• Emissions control issues caused by deteriorated air injection plumbing
• Heat-related hose hardening or oil vapor damage

Installation Notes

• Verify the pump-to-valve routing before installation.
• Clamps are required and should be inspected or replaced as needed.
• Confirm the BMW Z3 production date when servicing 1998-1999 vehicles, since fitment is limited to thru 08/98.
• Check adjacent air injection components for wear, cracking, or leakage before reassembly.

Quality Assurance

URO 11721432867 is backed by a 24 Month Unlimited Mileage Warranty. The hose is built for guaranteed fitment and uses material selected to resist cracking in demanding engine-bay conditions.