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 The Delco Igniter Head for L4 GM engines ensures efficient ignition and superior durability, suitable for various models with specific original reference numbers, and is manufactured by Sierra for Mercruiser and OMC.
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$ 34.44
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1-2 weeks delivery time The Igniter Head for V8 GM engines is designed for optimal performance and compatibility with Thunderbolt models IV and V, ensuring efficient ignition from 1981 to 2013 and manufactured by Sierra under product number 18-5395.
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$ 82.29
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1-2 weeks delivery time This Igniter Head for V6 GM engines offers outstanding ignition performance and compatibility with Thunderbolt IV and V models, ensuring smooth engine operation from 1985 to 2009, produced by Sierra with product number 18-5396.
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$ 52.21
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1-2 weeks delivery time Engineered for reliability and efficiency, the Igniter Finger for V8 GM engines is suitable for Delco HEI models and enhances ignition systems, covering the years 1993 to 2009 and manufactured by Sierra, product number 18-5402.
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$ 35.11
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1-2 weeks delivery time Designed for V6 and V8 GM and Ford engines, this Igniter Finger ensures optimal ignition performance and is compatible with Prestolite 7013 models, manufactured by Sierra from 1967 to 2012 under product number 18-5403.
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$ 15.32
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1-2 weeks delivery time This Igniter Finger for V8 GM with an integrated module provides effective ignition control, ensuring optimal performance across applications from 1993 to 2009, produced by Sierra under product number 18-5405.
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$ 24.09
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1-2 weeks delivery time Designed for L4 GM engines, the Igniter Finger is intended for Delco EST models, providing reliable ignition and enhancing performance from 1990 to 2010, manufactured by Sierra under product number 18-5406.
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$ 11.53
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1-2 weeks delivery time The Igniter Finger for V6 GM engines is specifically designed for Delco HEI distributors, ensuring high-quality ignition performance and reliability, covering the years 1989 to 2010 and produced by Sierra under product number 18-5408.
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$ 17.07
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1-2 weeks delivery time The Igniter Finger for OMC and Volvo Penta engines is designed for reliability and performance, compatible with Ford HEI models for OMC 5.0L/5.8L and Volvo 5.0/5.8 from 1993 to 1996, manufactured by Sierra under product number 18-5413.
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$ 35.67
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1-2 weeks delivery time The Ignition Finger for V8 GM engines provides effective ignition for long-lasting performance and is compatible with Thunderbolt IV and V models, covering the years 1981 to 2013 and manufactured by Sierra under product number 18-5431.
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$ 20.35
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1-2 weeks delivery time Engineered for V6 GM engines, this Igniter Finger is designed to provide reliable performance for marine applications, compatible with Thunderbolt IV and V models and manufactured by Sierra from 1985 to 2009, with product number 18-5432.
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$ 23.79
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1-2 weeks delivery time This ignition coil is designed for Mercruiser, Volvo Penta, and OMC engines, offering reliable performance with specific resistance and induction values, suitable for various engine types from 1963 to 1995, manufactured by Sierra under product number 18-5433.
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$ 84.06
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1-2 weeks delivery time Designed for Volvo Penta engines, this ignition coil ensures high performance and reliability, with specific resistance and induction values, suitable for models from 1963 to 1993 and manufactured by Sierra with product number 18-5436.
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$ 138.45
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1-2 weeks delivery time This ignition coil provides optimal ignition performance for OMC and Volvo Penta engines, featuring specific resistance and induction values, suitable for models from 1969 to 2005 and produced by Sierra under product number 18-5437.
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$ 84.12
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1-2 weeks delivery time This ignition coil is designed for Mercruiser engines, providing reliable performance and optimal ignition efficiency, with specifications including a primary resistance of 1.1 Ohm and a secondary resistance of 8.2 Ohm, suitable for GM V6 and V8 engines from 1981 to 2009, manufactured by Sierra under product number 18-5438.
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$ 115.88
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1-2 weeks delivery time Tailored for GM engine blocks, this HEI ignition coil ensures robust ignition performance with a primary resistance of 1.45 Ohm and a secondary resistance of 8.5 K Ohm, compatible with L4, V6, and V8 GM engines from 1983 to 2010, produced by Sierra with product number 18-5443.
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$ 148.32
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1-2 weeks delivery time Designed for optimal performance in OMC and Volvo Penta engines, this high voltage coil resistor has an original reference number of 4106140 and is suitable for models from 1969 to 1989, manufactured by Sierra under product number 18-5450.
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$ 33.59
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1-2 weeks delivery time This ignition coil offers excellent ignition reliability for a range of Mercruiser engines, compatible with models produced from 1998 to 2014, with multiple original reference numbers, manufactured by Sierra under product number 18-5465.
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$ 453.80
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1-2 weeks delivery time These trim relays are suitable for a wide range of Volvo Penta engines, ensuring reliable operation and performance across numerous models, manufactured by Sierra under product number 18-5704.
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$ 41.35
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1-2 weeks delivery time These essential trim relays are designed for a variety of Volvo-Penta and OMC engines, ensuring optimal performance and reliability across numerous engine models, produced by Sierra under product number 18-5705.
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$ 22.99
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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.