The water pump impeller is a crucial component in outboard motors, responsible for circulating water through the engine's cooling system to prevent overheating.
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1-2 weeks delivery time This propeller nut is compatible with multiple brands, ensuring secure fastening for outboard motors. It features original references like 11-52707 and has an outer diameter of 11/16" and an inner diameter of 3/4". Compatible with Honda, Mercury, and Mercruiser models, it is branded by Sierra with the product number 18-3700.
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$ 26.04
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1-2 weeks delivery time This high-quality propeller nut kit is essential for maintaining optimal performance in Mercury engines ranging from 75hp and above. It meets OEM specifications and ensures reliability for various models, including Honda and Mercruiser. The product number is 18-3701, and it includes original references such as 11-52707A1.
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$ 38.72
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1-2 weeks delivery time This propeller nut and thrust washer set is designed specifically for Mercury engines from 30hp to 60hp, ensuring a secure fit and optimal functionality. It is compatible with models like 40 and 60, featuring original references like 11-69578A1, and is branded by Sierra with the product number 18-3702.
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$ 25.96
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1-2 weeks delivery time Designed for optimal performance, this propeller thrust washer is suitable for various marine applications. It features an original reference of Merc. 12-31211Q03 and is branded by Sierra with the product number 18-3714.
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$ 17.98
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1-2 weeks delivery time This nut and washer kit is essential for ensuring secure installation and efficient operation of Johnson and Evinrude propellers. It is compatible with models such as 90 and 200, includes the original reference of 175266, and is branded by Sierra with the product number 18-3715.
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$ 53.63
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1-2 weeks delivery time Specifically designed for Johnson and Evinrude engines, this propeller nut kit provides a reliable solution for secure propeller attachment. It features the original reference 125267 and is compatible with models like 35 and 100, branded by Sierra under product number 18-3716.
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$ 22.26
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1-2 weeks delivery time This Johnson propeller nut kit is designed for reliable performance in Evinrude and Johnson engines, ensuring secure propeller attachment for optimal operation. It has the original reference of 175268 and is suitable for models such as 15 and 30, branded by Sierra with the product number 18-3717.
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$ 20.72
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1-2 weeks delivery time Designed specifically for Yamaha and Suzuki motors, this propeller nut is crucial for performance in models from 115hp. It includes original references like 09141-18005 and is branded by Sierra, with the product number 18-3726.
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$ 16.46
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1-2 weeks delivery time This spanner nut is essential for maintaining the integrity of various Mercruiser models. It has original references such as 35912 and is compatible with models like Bravo I/II/III, branded by Sierra with the product number 18-3751.
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$ 52.13
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1-2 weeks delivery time Designed for the Alpha I/Gen II series, this slot nut ensures a secure fit for optimal performance. It features original references like 35992 and is manufactured by Mercruiser, branded by Sierra under product number 18-3752.
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$ 64.71
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1-2 weeks delivery time The Yamaha Propeller Nut Kit is designed for specific Yamaha outboard models, ensuring a perfect fit and reliable performance. It has an original part reference of 6H1-W4599-00-00 and is compatible with models such as F50 and T50. Manufactured by Yamaha and branded by Sierra, it carries the product number 18-3781.
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$ 83.69
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1-2 weeks delivery time These bleed screws are essential for maintaining the cooling system in various Mercruiser, OMC, and Volvo Penta engines. They have original references such as 22-16951A1 and are compatible with engines from 3.0L to 7.4L, covering years from 1910 to 2014. Branded by Sierra, the product number is 18-4218.
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$ 21.22
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1-2 weeks delivery time Designed specifically for Mercruiser engines, these bleed screws ensure reliable performance and compatibility. They replace original references like 22-806926A1 and are suitable for models MCM/MIE V6-V8 from 1987 to 2012. Branded by Sierra, the product number is 18-4224.
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$ 17.64
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1-2 weeks delivery time The drain screw cap is crucial for maintaining the integrity of the engine's drainage system. It has original references such as 22-806608A02 and is compatible with models from 3.0L to 8.2L, covering years from 1987 to 2014. Manufactured by Mercruiser and branded by Sierra, it carries the product number 18-4226.
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$ 7.38
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1-2 weeks delivery time The Steel Plug with a diameter of 1/4" is made of steel and is a universal model. It is branded by Sierra and has the product number 18-4257.
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$ 5.19
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1-2 weeks delivery time This Brass Cap with a diameter of 1/8" ensures a secure fit for engine needs. It is compatible with various models from 30 to 225 horsepower and is made of brass. The product number is 18-4263, and it is branded by Sierra.
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$ 9.53
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1-2 weeks delivery time The Brass Cap measuring 3/8" is essential for ensuring a secure seal in various marine applications. It is compatible with models from 75 to 300 DFI/EFI and is branded by Sierra with the product number 18-4264.
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$ 7.45
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1-2 weeks delivery time This Brass Cap with a diameter of 3/4" provides a reliable seal for a wide range of engines, including those from 200 to 300hp. It is compatible with various Mercruiser and Mercury models and carries the product number 18-4265, branded by Sierra.
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$ 10.33
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1-2 weeks delivery time The 8 Trim Rings for Bravo Lower Unit are designed specifically for Bravo I, II, III, X, XR, and XZ models, ensuring optimal performance and durability. They have original references like 23-44165 and are branded by Sierra with the product number 18-4288-9.
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$ 130.18
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1-2 weeks delivery time The 2 Trim Shaft Circlips are essential for ensuring the proper function of your marine engine systems. They have original references such as 53-29641 and are compatible with Chrysler, Force, Mercruiser, Mercury, and US Marine engines. Branded by Sierra, the product number is 18-4295-9.
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$ 4.26
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What is the function of an impeller in an outboard motor?
The impeller in an outboard motor is a flexible, rubber component housed within the water pump. Its primary function is to draw water from outside the boat and circulate it through the engine's cooling system, preventing overheating. Regular inspection and timely replacement of the impeller are crucial, as wear or damage can lead to engine failure. Utilizing appropriate tools, such as an impeller puller, can facilitate safe removal and installation during maintenance procedures.
For genuine replacement parts, see our range of Boat Impeller.
For models designed specifically for Evinrude engines, explore our selection of Evinrude Impeller options. We also offer a dedicated range of Mercury Impeller replacements for those maintaining Mercury outboard motors, ensuring optimal performance and compatibility.
What are the differences between a standart outboard impeller and a raw water pump impeller in outboard motors?
A standard outboard impeller is typically designed for general cooling system operation, ensuring a steady water flow through the pump housing and engine. A raw water pump impeller, on the other hand, is specifically built to handle unfiltered seawater, requiring a more flexible impeller material to resist wear and debris. Regular impeller service, including replacing the old impeller with a new one and applying lubricant to the shaft and seal, helps maintain optimal performance and prevent gear damage.
For those servicing their outboard motor, a proper Honda Impeller Replacement ensures efficient cooling and engine longevity.
What are the signs that indicate an outboard engine needs an impeller service?
Signs that an outboard engine needs an impeller service include reduced water flow from the telltale, overheating, or unusual noises from the water pump housing. If the engine temperature rises abnormally, it may indicate that the water pump impeller is worn or damaged, requiring removal and replacement with a new impeller from a repair kit. Routine inspection and proper installation following the brand’s instructions help maintain performance and prevent issues related to overheating and insufficient cooling.
For Tohatsu engines, a high-quality Tohatsu Impellers is essential for maintaining optimal water circulation and preventing engine damage. Regularly checking and replacing the Tohatsu impeller ensures efficient cooling, prolonging the life of your outboard motor and keeping it in peak condition for all your boating adventures.