Original BOGAP Cylinder Head–Expansion Tank Hose
17129844478 / B4228477

Ensure proper coolant circulation and pressure balance with this Original BOGAP Hose from Cylinder Head to Expansion Tank for BMW. This hose channels excess coolant to the expansion tank, helping maintain optimal engine temperature and preventing overheating. Manufactured to factory specifications using durable, heat- and pressure-resistant materials, it provides a secure fit and long-term reliability.