Genuine Crankcase Breather Hose BMW Engine

This genuine BMW crankcase breather hose, also called a crankcase vent hose or PCV breather hose, is an original equipment part for BMW engines. It carries crankcase vapors and blow-by gases away from the engine block as part of the crankcase ventilation system. This helps keep internal pressure balanced.

Key Features:

• Original equipment BMW part, built to the manufacturer's specifications
• Part of the crankcase ventilation (PCV) system, which routes blow-by gases back to the intake to be burned
• Made to handle engine heat, oil vapor and under-hood conditions
• Replaces a hose that has become cracked, brittle, collapsed or leaking

A worn breather hose can cause vacuum leaks, rough idle, oil leaks and check engine lights. Replacing it with a genuine part helps restore proper crankcase ventilation and engine performance. Each part number in this product line is listed as its own variant.