Coolant Pump Impeller SIERRA 18-8911

Compatible Engines

The SIERRA 18-8911 coolant pump impeller is a critical component of the cooling system, ensuring proper fluid flow through the cylinder head and engine block. Manufactured by the reputable supplier SIERRA, this part guarantees high build quality and durability in demanding operating conditions. Due to the nature of the aftermarket parts market, compatibility with specific engine models (e.g., Parsun, Yamaha, or others) requires verification. We recommend verifying compatibility based on the manufacturer's catalog number 18-8911 or the original OE number before purchase. If you have any doubts about fitting this part to your propulsion unit, contact our customer support, who will help you confirm the correct selection.

Installation and Operation

Regular replacement of the impeller is essential for maintaining outboard motor performance. Worn vanes cause a drop in pressure and insufficient cooling, which can lead to engine overheating. During installation, pay attention to the orientation of the vanes – they must be aligned with the direction of the pump rotation to ensure proper suction and fluid discharge. Before installing, check the condition of the seals and pump housing, removing any debris. Using the original SIERRA 18-8911 impeller guarantees precise dimensional fit and longevity, protecting your engine from costly failures.

• High build quality – SIERRA brand product meets rigorous industrial standards.
• Optimal cooling – precise dimensions ensure effective coolant flow.
• High durability – wear-resistant material suitable for aquatic environments.
• Lightweight design – weighing only 0.02 kg, it is easy to handle and replace.
• Easy installation – standard dimensions allow for quick replacement without special tools.