Genuine Mercedes 166-500-15-91 Engine Coolant Overflow Hose

The Genuine Mercedes-Benz 166-500-15-91 is an OEM engine coolant overflow hose designed for the primary cooling system. This hose connects between the expansion reservoir and the radiator, serving as a critical bleed line in the cooling system. Used on 5.5L biturbo engines, this hose manages coolant overflow from the primary radiator.

Key Features:

• Genuine OEM Mercedes-Benz part manufactured to exact factory specifications
• Direct replacement for part number 1665001591
• Engineered specifically for proper fitment and performance
• Constructed from premium materials for durability and heat resistance
• Backed by manufacturer's 12-month warranty

This overflow hose is a critical component of your Mercedes-Benz cooling system, ensuring proper coolant circulation and pressure relief. Genuine Mercedes-Benz parts are subjected to rigorous testing and quality control to ensure reliable performance and longevity. When your cooling system hoses need replacement, trust genuine OEM parts for the perfect fit and function your vehicle deserves.