A water pump impeller replacement is a crucial maintenance task for boat and marine engines. This impeller is responsible for circulating coolant, preventing overheating, and ensuring optimal engine performance. Regular replacement of the impeller helps maintain the reliability and longevity of marine power systems, such as Perkins and Ancor engines.
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1-2 weeks delivery time The Allpa 500364 impeller engineered for Yamaha outboards features six blades and larger dimensions of 20 mm diameter A by 58.2 mm diameter B and 34.7 mm length, designed for enhanced water flow, OEM 67F-44352-00-00.
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$ 37,63
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1-2 weeks delivery time The Allpa 500371 impeller is specifically made for Yamaha outboard motors, featuring six blades with larger diameters and length to ensure robust cooling system performance.
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$ 29,88
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1-2 weeks delivery time The Allpa 500323 impeller for Yamaha outboards has six blades and optimized dimensions to promote efficient water circulation and effective engine cooling.
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$ 25,10
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1-2 weeks delivery time The Allpa 500389 impeller is designed for Yamaha outboard engines with six blades, offering a larger diameter and length to meet demanding cooling requirements.
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$ 30,08
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1-2 weeks delivery time The Allpa 500302 impeller suits Yamaha outboard motors with six blades and smaller diameters, ideal for precise cooling system needs.
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$ 25,31
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1-2 weeks delivery time The Allpa 500162 impeller for Yanmar outboards features 12 blades and includes a gasket, designed with specific dimensions for high-performance water flow.
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$ 72,62
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1-2 weeks delivery time The Allpa Impeller Puller is a specialized tool created to safely and efficiently remove impellers from marine engines and pumps.
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$ 219,42
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1-2 weeks delivery time Talamex Neoprene Inboard Impeller Pin Drive With Gasket & Pin 6 Blades 9.54 x 39.60 x 18.94 mm is a six-blade neoprene impeller for pin drive holes, including a gasket and bolt, and replaces models 104211-42070 and 104211-42071. Dimensions are A 9.54 mm, B 39.60 mm, C 18.94 mm, and Article Number 17200100.
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$ 21,85
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1-2 weeks delivery time Talamex Neoprene Inboard Impeller Pin Drive With Gasket & Pin 6 Blades 12.17 x 50.80 x 22.10 mm is a six-blade neoprene impeller with gasket and bolt for pin drive holes, replacing model 128990-42200. Dimensions are A 12.17 mm, B 50.80 mm, C 22.10 mm, and Article Number 17200101.
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$ 23,62
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1-2 weeks delivery time This durable neoprene inboard impeller with a key drive and 8 blades includes a cap for secure installation, ensuring reliable water circulation and performance for marine engines.
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$ 50,79
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1-2 weeks delivery time Ideal for inboard engines, this 12-blade neoprene impeller features a key drive and comes with both a gasket and cap to provide a secure, leak-free fit and consistent water flow.
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$ 45,65
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1-2 weeks delivery time Crafted for spline drive inboard engines, this 12-blade neoprene impeller delivers dependable water flow, with the included gasket and cap ensuring optimal sealing and functionality.
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$ 62,50
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1-2 weeks delivery time This large 9-blade spline drive inboard impeller is made of durable neoprene and comes with a gasket and cap for secure, efficient installation and reliable marine engine cooling.
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$ 78,03
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1-2 weeks delivery time Designed for spline drive inboard systems, this 8-blade neoprene impeller ensures smooth water circulation, with a gasket and cap included for improved sealing and reliability.
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$ 35,13
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1-2 weeks delivery time Built for inboard water pumps, this 12-blade spline drive neoprene impeller comes with a gasket and cap, offering durable construction and secure performance for marine engines.
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$ 30,71
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1-2 weeks delivery time This high-quality 12-blade neoprene inboard impeller with a key drive includes a gasket, key, and cap, providing reliable installation, easy maintenance, and secure operation.
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$ 46,75
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1-2 weeks delivery time Suitable for marine water pumps, this 8-blade single flat drive neoprene impeller comes with a protective cap, delivering strong and consistent water circulation for inboard systems.
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$ 49,70
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1-2 weeks delivery time Compact and efficient, this 6-blade single flat drive neoprene impeller supports smooth pump operation for various inboard engine models, ensuring dependable performance.
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$ 22,42
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1-2 weeks delivery time This small-sized 6-blade single flat drive neoprene impeller is durable and reliable, making it ideal for marine engines requiring compact inboard water pump components.
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$ 19,78
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1-2 weeks delivery time This 10-blade spline drive inboard impeller is made of durable neoprene and includes a protective cap, providing efficient water circulation for marine engine cooling.
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$ 35,32
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How does a flexible impeller differ from a standard water pump impeller in terms of functionality?
A flexible impeller differs from a standard water pump impeller in its design and ability to handle varying conditions. Made of neoprene or nitrile rubber, the flexible impeller blades bend and conform to changes inside the pump body, making it effective for raw water pumping in marine engines. This flexibility allows it to handle small debris and tolerate running dry briefly, reducing the risk of damage compared to a standard impeller, which is typically made of more rigid materials and has less tolerance for friction or sudden changes in conditions.
When replacing a flexible impeller, having the right spare parts is crucial to ensure proper installation and function. An impeller puller is often needed to remove the old impeller from the pump shaft without causing damage. During installation, it's important to lubricate the impeller and insert it in the correct direction to avoid damaging the blades. A proper gasket and cover must also be used to prevent leaks, and all components—such as the impeller hub—should be securely in place to maintain efficient engine cooling.
How does an impeller replacement affect the performance of a boat outboard engine?
Replacing an impeller in a boat outboard engine ensures the engine cooling system functions effectively, preventing overheating and maintaining optimal performance. Installing a new impeller helps maintain efficient water transfer within the pump body, ensuring the engine remains cool during operation. Regular replacement is crucial for reliability, especially for demanding conditions in both inboard and outboard applications.
For reliable replacements tailored to your engine, explore our full selection of Evinrude Impeller options.
What are the differences between neoprene and nitrile impellers for marine applications?
Neoprene and nitrile impellers differ in their suitability for marine applications. Neoprene impellers are ideal for most marine cooling systems due to their flexibility and durability when pumping fresh or saltwater, making them suitable for emergency situations. Nitrile impellers, on the other hand, are more resistant to oils and chemicals, making them a good idea for applications where the impeller may come into contact with fuel or oil. Both types are durable, but choosing the right one depends on the specific needs of the engine's cooling or raw water system.