Cooling Water Pump Impeller SIERRA 18-3217

Compatible Engines

The SIERRA 18-3217 cooling water pump impeller is a critical component of the cooling system, designed for reliability and long service life. This high-quality replacement part ensures optimal water flow through the engine cylinder head, preventing dangerous overheating during operation. It is dedicated to outboard and sterndrive engines, including popular MERCRUISER and MERCURY designs, where it plays a fundamental role in maintaining a constant operating temperature.

Since part compatibility can vary depending on the year of manufacture and engine version, we recommend verifying fitment based on the manufacturer's catalog number 18-3217 or the original OE number. If you have any doubts about selecting the correct impeller for your engine, contact our customer support – we are happy to help you choose the right part to ensure peace of mind and safety on the water.

Installation and Operation

• Original SIERRA Quality – guarantee of manufacturing precision and material durability.
• Perfect Fit – dimensions 60x33.6x22 mm ensure a tight seal in the pump housing.
• Easy Replacement – simple design allows for quick repair without specialized tools.
• Engine Protection – effective heat dissipation extends the life of the power unit.

When replacing the impeller, it is worth checking the condition of the seals and the pump housing for corrosion or debris. Regular maintenance of the cooling system is the best investment in the safety of your boat.