SIERRA 18-8297 Cooling Water Pump Impeller

Compatible Engines

Cooling is the foundation of every outboard engine's reliability. The SIERRA 18-8297 cooling water pump impeller is a critical component that ensures proper coolant circulation, protecting your unit from overheating. This high-quality replacement part, manufactured by the renowned supplier SIERRA, is the ideal solution for boat owners with MERCRUISER 4.3 engines (model 4.3, production year 1998 and newer). Using an original impeller or its faithful equivalent with the catalog number 18-8297 guarantees precise fit and long pump life. Do not risk breakdowns on the water – ensure your cooling system is in working order by using the proven component with number 18-8297.

Installation and Operation

Replacing the impeller is a relatively simple task, but it requires care. Before starting work, make sure the engine is turned off and disconnected from the power supply. Check the condition of the drive belt itself and friction on the pulleys. We recommend regular inspection of the cooling pump seal to eliminate the risk of leaks. Using a part with number 18-8297 from manufacturer SIERRA minimizes the risk of incorrect installation.

• Ensures stable coolant flow in MERCRUISER 4.3 engines.
• Made from durable materials resistant to corrosion and high temperatures.
• Precise dimensions ensure perfect fit to the pump without play.
• Reduces the risk of engine failure caused by overheating.
• Easy installation thanks to the standard impeller design.