BMW crankcase ventilation hose

BMW 13717803842 Crankcase Ventilation Hose – Genuine Solution for Efficient Engine Breathing and Emission Control

The BMW 13717803842 crankcase ventilation hose is an essential component of the PCV (Positive Crankcase Ventilation) system.

It is responsible for routing crankcase gases—produced as a natural byproduct of combustion—back into the intake system to be re-burned. This helps reduce harmful emissions, prevent engine sludge, and maintain optimal engine efficiency.

Designed as a genuine BMW part, this hose offers precise fitment, long-lasting durability, and leak-free operation.

It is built to withstand high temperatures, oil vapor exposure, and engine vibration. Over time, crankcase hoses can become brittle or cracked, leading to oil leaks, rough idling, or increased fuel consumption—making timely replacement essential for engine health.

Whether you're performing preventative maintenance or replacing a worn part, the 13717803842 hose ensures that your engine’s ventilation system functions correctly and helps keep the combustion process clean and efficient.

Key Features:

✔ Genuine BMW component – engineered to OE specifications
✔ Maintains proper crankcase ventilation – improves combustion and engine health
✔ Oil-, heat-, and pressure-resistant construction
✔ Prevents vacuum leaks and unmetered air intrusion
✔ Easy installation – perfect fit for quick, secure replacement

Highly recommended for BMW owners looking to restore or maintain original engine performance, efficiency, and emission compliance. The BMW 13717803842 crankcase ventilation hose is a small but vital part of a healthy engine.