Coolant Pump Impeller SIERRA 18-3075

Compatible Engines

Ensure your outboard motor runs reliably by choosing the original SIERRA coolant pump impeller, part number 18-3075. This is a critical component of the cooling system, responsible for the continuous flow of water through the engine head, preventing dangerous overheating during operation. With dimensions of 57x31.5x15 mm, this high-quality product is designed for durability and a perfect fit within the pump housing.

Since precise compatibility lists are not available in the source data, we recommend verifying fitment based on the SIERRA part number 18-3075 or the original OE number provided by the engine manufacturer. Every engine requires precise dimensions for the water pump to function correctly. If you are unsure whether this specific impeller fits your unit, contact our customer support. Our experts are happy to help you verify the serial number or factory part number to ensure a risk-free purchase.

Installation and Maintenance

Replacing the impeller is a task that should be performed regularly as part of seasonal maintenance. An old, worn impeller can cause a drop in water pressure, leading to failure. During installation, pay attention to the cleanliness of the pump housing and the correct placement of seals to avoid leaks. Using a new SIERRA 18-3075 impeller restores full cooling system efficiency.

• Original SIERRA quality – guarantee of durability and cooling effectiveness.
• Precise dimensions – perfect fit to the pump housing (57x31.5x15 mm).
• Engine protection – effective prevention of engine overheating.
• Easy installation – standard replacement during technical inspection.
• Reliability – wear-resistant material and water resistance.