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 Allpa 500399 features six blades and precise dimensions for Suzuki outboards, compatible with OEM 17461-96400 and 17461-96402, measuring Ø A 17.2 mm, Ø B 67 mm, and C 16.16 mm.
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$ 24,60
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1-2 weeks delivery time Allpa 500365 for Suzuki outboards includes six blades and larger dimensions, designed to fit OEM 17461-87E00, 17464-87E10, and 17461-8711, with Ø A 22.2 mm, Ø B 78.3 mm, and C 26 mm.
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$ 32,49
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1-2 weeks delivery time Allpa 500360 is a Suzuki outboard impeller with six blades, matching OEM 17461-95300 and 17461-95501, having dimensions Ø A 20 mm, Ø B 67.5 mm, and C 19 mm.
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$ 24,60
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1-2 weeks delivery time The Allpa 500393 impeller is designed for Suzuki outboard engines with a 5-blade configuration, offering optimal water flow and performance. It features specific dimensions including diameters of 24.3 mm and 87 mm, with a length of 39 mm, and corresponds to OEM 17461-93J00.
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$ 39,19
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1-2 weeks delivery time The Allpa 500367 impeller for Suzuki outboards has 6 blades, engineered to ensure efficient cooling and reliable operation across various engine models. Its dimensions include a diameter of 24.4 mm by 86 mm and length of 31.7 mm, matching multiple OEM references like 17461-90J00 and 17461-94511.
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$ 25,31
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1-2 weeks delivery time The Allpa 500312 impeller, designed for Suzuki outboards, features 6 blades and compact sizing with a diameter of 19.13 mm by 51.8 mm and length of 19 mm, suitable for OEM 17461-95201 and ensuring proper water flow and engine cooling.
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$ 18,39
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1-2 weeks delivery time The Allpa 500336 Suzuki outboard impeller includes 6 blades in a compact design, measuring 10 mm by 41 mm with a 14 mm length, compatible with several OEM models such as 17461-98501, providing efficient engine cooling.
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$ 17,31
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1-2 weeks delivery time The Allpa 500232 impeller built for Vetus outboard engines has 6 blades and precise dimensions of 8 mm diameter A by 44.6 mm diameter B and 13 mm length, designed to maintain proper water circulation with OEM IMP00401.
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$ 17,81
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1-2 weeks delivery time The Allpa 500322 impeller for Yamaha outboards features 6 blades with dimensions of 10 mm by 36 mm and a length of 14.5 mm, crafted to ensure steady water flow and maintain engine temperature, compatible with OEM 6L5-44352-00-00.
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$ 17,55
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1-2 weeks delivery time The Allpa 500325 impeller designed for Yamaha outboards has 6 blades and measures 11 mm in diameter A by 40 mm diameter B with a 12.6 mm length, optimized for effective water circulation and cooling, OEM 6E0-44352-00-00.
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$ 16,35
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1-2 weeks delivery time The Allpa 500324 impeller for Yamaha outboards features 6 blades and dimensions of 11.15 mm by 47.5 mm with a 13.7 mm length, ensuring efficient water flow and cooling performance, corresponding to OEM 646-44352-01-00.
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$ 24,60
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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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$ 21,07
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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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$ 20,55
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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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$ 23,83
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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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$ 27,47
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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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$ 20,41
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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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$ 21,74
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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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$ 39,47
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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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$ 24,87
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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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$ 19,55
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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.