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 500205 Jabsco impeller offers larger dimensions measuring 22.5 x 96 x 63.1 mm, making it suitable for demanding pumping needs.
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$ 89.81
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1-2 weeks delivery time Allpa 500208 is a Jabsco impeller that features a compact but effective design, sized at 15.93 x 57 x 31.6 mm, ideal for medium-scale operations.
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$ 38.79
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1-2 weeks delivery time The 500214 Jabsco impeller combines moderate size with an efficient design for versatile use, measuring 14.29 x 65 x 50.1 mm.
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$ 40.93
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1-2 weeks delivery time Allpa 500216 is a Jabsco impeller providing dependable performance with dimensions of 12.66 x 50.8 x 22.1 mm.
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$ 26.98
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1-2 weeks delivery time The 500230 Jabsco impeller is compact and suited for smaller pump assemblies requiring precision, sized at 8 x 31.75 x 12 mm.
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$ 22.82
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1-2 weeks delivery time Allpa 500238 is a Jabsco impeller designed with specific measurements of 7.31 x 51.3 x 22 mm for specialized pumping tasks.
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$ 19.86
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1-2 weeks delivery time The nitrile Allpa 500206 impeller is made for durability and reliable performance, with a size of 14.29 x 65 x 50.2 mm, fitting various pump applications.
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$ 40.14
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1-2 weeks delivery time Allpa 500207 is a nitrile Jabsco impeller featuring a compact design measuring 14.29 x 57 x 31.6 mm, ideal for efficient fluid movement.
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$ 35.54
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1-2 weeks delivery time The nitrile Allpa 500213 impeller is suited for smaller pump systems, measuring 8 x 31.3 x 11.9 mm for precise and dependable operation.
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$ 26.15
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1-2 weeks delivery time The Allpa 500101 Jabsco/Nanni impeller is designed for outboard engines, featuring six blades and including a gasket and screw for easy installation; it measures Ø A 12.17 mm, Ø B 50.8 mm, and C 22.1 mm.
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$ 21.98
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1-2 weeks delivery time Allpa 500146 is an outboard Jabsco/Vetus impeller equipped with ten blades, delivering reliable water pump performance and including the necessary screw for mounting.
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$ 36.37
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1-2 weeks delivery time The Allpa 500116 Jabsco/Vetus impeller has six blades suitable for outboard engines and comes supplied with both gasket and screw for convenient installation.
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$ 21.75
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1-2 weeks delivery time Allpa 500107 Jabsco/Vetus impeller features twelve blades for enhanced water flow and includes a gasket and cap for secure fitting on outboard engines; its dimensions are Ø A 14.29 mm, Ø B 57 mm, and C 31.6 mm.
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$ 28.59
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1-2 weeks delivery time The Allpa 500114 Jabsco/Vetus impeller is equipped with ten blades, designed for optimal water pump performance, comes with a cap, and measures Ø A 14.29 mm, Ø B 65 mm, and C 50.1 mm.
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$ 32.92
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1-2 weeks delivery time Allpa 500106 is an 8-blade impeller that comes with a gasket and cap, designed for reliable use in outboard applications, with specific dimensions of Ø A 14.29 mm, Ø B 65 mm, and C 50.2 mm.
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$ 32.76
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1-2 weeks delivery time Allpa 500145 features 12 blades and includes a gasket and cap, tailored for outboard engines, measuring Ø A 22.5 mm, Ø B 95 mm, and C 88.5 mm.
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$ 103.06
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1-2 weeks delivery time Allpa 500105 is a 9-blade impeller supplied with gasket and cap for outboard motors, having dimensions of Ø A 22.5 mm, Ø B 96 mm, and C 63.1 mm.
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$ 72.67
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1-2 weeks delivery time Allpa 500121, designed for outboard motors, has 6 wings and comes with a gasket and screw, with measurements of Ø A 12 mm, Ø W 39.3 mm, and C 19.2 mm.
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$ 21.17
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1-2 weeks delivery time Allpa 500103 is a 12-blade impeller suitable for outboard engines, including a gasket and cap, with Ø A 15.9 mm, Ø B 62 mm, and C 31.7 mm.
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$ 42.56
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1-2 weeks delivery time Allpa 500120 is designed for Yamaha outboards, featuring 12 blades and including a gasket and cap, with dimensions Ø A 15.9 mm, Ø B 65.2 mm, and C 41.3 mm.
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$ 50.66
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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.