URO 11617533399 Crankcase Breather Hose Cold Climate Version

The URO 11617533399 is an insulated crankcase breather hose designed specifically for cold climate applications. This critical emissions component connects the crankcase vent valve to the intake manifold, routing oil and combustion vapors back through the intake system to reduce hydrocarbon emissions and maintain proper crankcase pressure.

Key Features:

• Cold climate version with insulated construction to prevent freezing in low temperatures
• High-quality materials resist cracking and splitting from engine heat and oil vapor exposure
• Direct OE replacement for BMW part number 11617533399
• Manufactured by URO Parts with ISO 9000 certified quality standards
• Extensively tested for flow rates, chemical resistance, and material composition

This breather hose is an essential component of the crankcase ventilation system. Factory hoses become brittle and crack over time, causing vacuum leaks that can result in rough running, stalling at idle, or difficulty starting. Replacing this hose restores proper crankcase breather functionality and ensures compliance with emissions standards. The insulated cold climate design helps prevent condensation freezing issues that can damage the entire oil separator system.