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 500363 impeller designed for Yamaha outboards has six blades with a diameter of 12.85 mm by 53 mm and a length of 14 mm, offering reliable cooling and optimal water circulation, OEM 63V-44352-01-00.
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$ 21.65
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1-2 weeks delivery time The Allpa 500320 Yamaha outboard impeller includes six blades with dimensions of 13 mm diameter A by 40 mm diameter B and 22 mm length, designed to fit various engine models and maintain cooling efficiency, OEM 682-44352-01-00.
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$ 21.12
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1-2 weeks delivery time The Allpa 500368 impeller for Yamaha outboards features 6 blades and precise measurements of 11.6 mm diameter A, 53 mm diameter B, and 14 mm length, supporting effective cooling and water circulation, OEM 68T-44352-00-00.
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$ 24.49
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1-2 weeks delivery time The Allpa 500384 Yamaha outboard impeller has six blades with dimensions of 13.97 mm by 51.2 mm and a 19.05 mm length, tailored for reliable engine cooling with OEM 6L2-44352-00-00.
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$ 28.24
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1-2 weeks delivery time The Allpa 500321 impeller designed for Yamaha outboards features six blades measuring 14 mm by 40 mm with a 22 mm length, ensuring optimal water flow and engine cooling, OEM 662-44352-01-00.
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$ 20.98
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1-2 weeks delivery time The Allpa 500352 Yamaha impeller includes six blades with larger dimensions of 16.04 mm by 69.8 mm and a 22.1 mm length, providing strong water circulation for efficient engine cooling, OEM 6F5-44352-00-00.
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$ 22.35
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1-2 weeks delivery time The Allpa 500385 impeller for Yamaha outboards offers reliable performance with six blades and precise dimensions of 16.1 mm by 51.2 mm and 19.05 mm length, includes a gasket for easy installation, OEM 6H4-44352-02-00.
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$ 40.57
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1-2 weeks delivery time The Allpa 500326 Yamaha impeller features six blades and measurements of 16.15 mm diameter A by 69.5 mm diameter B with a 12.72 mm length, designed for optimal cooling system performance, OEM 689-44352-02-00.
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$ 25.56
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1-2 weeks delivery time The Allpa 500316 impeller for Yamaha outboards has six blades and dimensions of 18.05 mm by 51.8 mm with a length of 19 mm, ensuring efficient water flow and compatibility with OEM references 697-44352-00-00 and 6H3-44352-00-00.
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$ 20.10
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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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$ 38.67
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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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$ 30.72
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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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$ 25.80
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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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$ 30.92
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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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$ 26.01
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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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$ 74.65
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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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$ 225.53
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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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$ 22.46
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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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$ 24.28
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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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$ 52.21
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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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$ 46.92
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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.