The Yamaha impeller is a vital part of the water pump system in Yamaha outboard engines, responsible for maintaining efficient cooling by circulating water through the engine. Constructed to endure the harsh marine environment, this impeller prevents overheating by ensuring a consistent flow of water around critical engine components.
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1-2 weeks delivery time Osculati 52.400.01 is a high-precision impeller for compact 4–5 HP outboards from Mercury, Yamaha, Selva, and Parsun. Compatible with OEM codes such as Mercury 47-96305M and Yamaha 6E0-44352-00, this 6-blade rubber impeller ensures reliable engine cooling in small 2- and 4-stroke marine engines. With a 40 mm outer diameter and 11 mm bore, it fits tightly into OEM housings and performs optimally under continuous use.
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$ 21.13
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1-2 weeks delivery time Osculati 52.400.03 is a 6-blade rubber impeller engineered for Mercury and Yamaha 2-stroke outboards in the 6 to 8 HP range. It directly replaces Mercury 47-95611M and Yamaha 662-44352-01-00, maintaining optimal water pump efficiency and protecting engines from overheating. With a 14 mm bore, 40 mm outer diameter, and 22 mm height, it fits snugly into original housings for reliable and consistent cooling performance.
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$ 26.32
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1-2 weeks delivery time Osculati 52.400.11 is a high-volume 6-blade water pump impeller designed for powerful 2-stroke and 4-stroke outboards ranging from 115 to 300 HP. Fully compatible with Mercury, Yamaha, and Selva engines, this model replaces OEM references such as Mercury 47-898689 and Yamaha 6E5-44352-00/01. With a large 89 mm outer diameter and 22.4 mm inner bore, this impeller delivers optimal water flow to protect high-performance engines from overheating under demanding marine conditions.
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$ 41.28
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1-2 weeks delivery time Osculati 52.400.04 is a precision-molded 6-blade impeller designed for Yamaha and Mercury 2-stroke outboards rated at 25 and 30 HP. Fully compatible with OEM codes Yamaha 689-44352-02 and Mercury 47-84797M, this impeller ensures optimal water pump performance, safeguarding the engine against overheating. Its 16.15 mm bore and 69.5 mm outer diameter provide a secure OEM-level fit, while the 12.72 mm height ensures smooth operation under high load.
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$ 34.30
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1-2 weeks delivery time Osculati 52.400.10 is an ultra-compact 6-blade impeller designed for Yamaha 2-stroke outboard engines rated at 2 HP. It replaces OEM reference 646-44352-01 and is optimized for lightweight, portable engines often used on tenders, inflatables, and small utility boats. With a 11.15 mm insert diameter (Ø A), 47.5 mm outer diameter (Ø B), and 13.7 mm height (C), this impeller ensures consistent cooling flow at low RPM and under minimal water pressure conditions.
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$ 34.05
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1-2 weeks delivery time Osculati 52.400.00 is a small-format, 6-blade impeller designed for Yamaha 2-stroke outboard engines rated at 6 and 8 HP. It replaces OEM part number 6G1-44352-00 and ensures stable water pump performance in compact marine engines. With a 11.9 mm insert diameter (Ø A), 40 mm outer diameter (Ø B), and 18 mm height (C), this impeller is built from flexible elastomer to withstand temperature shifts and saltwater exposure during regular use in tenders, inflatables, and light boats.
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$ 34.98
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1-2 weeks delivery time Osculati 52.400.02 is a precision impeller designed for Yamaha outboard engines across both 2-stroke (9.9/15 HP) and 4-stroke (8/9.9 HP) models. Compatible with OEM references 682-44352-01 and 682-44352-00, this 6-blade impeller delivers stable water flow and cooling efficiency. It features a 13 mm shaft insert diameter (Ø A), 40 mm outer diameter (Ø B), and 22 mm height (C), ideal for small outboards operating under varying load and temperature conditions.
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$ 28.39
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1-2 weeks delivery time Osculati 52.400.08 is a high-efficiency outboard impeller for Yamaha 2-stroke engines rated at 20D and 25 HP. Built to replace OEM reference 6L2-44352-00, it ensures stable water flow and consistent engine cooling. The impeller features a 13.97 mm shaft insert diameter (Ø A), 51.2 mm outer diameter (Ø B), and 19.05 mm height (C), and is made from saltwater-resistant marine elastomer with a 6-blade configuration optimized for compact mid-range propulsion systems.
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$ 37.95
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1-2 weeks delivery time Osculati 52.400.07 is a high-volume 6-blade impeller developed for Yamaha 2-stroke outboard engines in the 60–90 HP range, including 60, 75, 80, 85, and 90 HP models. It replaces OEM reference 688-44352-03 and is constructed from marine-grade elastomer for reliable performance in saltwater and high-RPM environments. With a 20.1 mm insert diameter (Ø A), 58 mm outer diameter (Ø B), and 30 mm height (C), this impeller delivers efficient water flow to maintain optimal engine temperature during sustained use.
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$ 34.69
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1-2 weeks delivery time Osculati 52.400.12 is a high-capacity, heavy-duty impeller for Yamaha 4-stroke outboard engines rated at 300 and 350 HP. Built to replace OEM reference 6AW-44352-00, this model is designed for large-engine cooling systems operating under extreme load and temperature. It features a 24.6 mm shaft insert (Ø A), 89 mm outer diameter (Ø B), and 36 mm height (C), with a 6-blade configuration to maintain high water volume flow required by large-displacement V6/V8 engines.
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$ 40.45
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1-2 weeks delivery time Osculati 52.352.00 is a compact 6-blade impeller designed for Yamaha and Evinrude 40 HP 2-stroke outboard engines manufactured between 1990 and 1997. Built to replace OEM part 6F5-44352-00, it features a 15.8 mm shaft insert diameter (Ø A), 69.7 mm outer diameter (Ø B), and 22.3 mm height (C). Its marine-grade elastomer construction provides reliable cooling circulation, even in high-RPM conditions, ensuring long engine life and thermal stability.
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$ 30.07
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1-2 weeks delivery time Osculati 52.400.05 is a robust 6-blade impeller designed for Yamaha and Selva outboard engines ranging from 25B to 70 HP (2-stroke) and 40XS (4-stroke). Replacing OEM part numbers 6H3-44352-00 and 69-44352-00, it ensures reliable water circulation for engine cooling even under high operating loads. With an insert diameter of 18.05 mm, outer diameter of 51.8 mm, and height of 19 mm, it delivers performance and durability for mid-range marine propulsion systems.
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$ 27.03
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1-2 weeks delivery time Osculati 52.368.00 is a compact 6-blade impeller tailored for Yamaha and Selva 4-stroke outboard engines rated at 8 and 9.9 HP. Compatible with OEM codes 68T-44352-00 and 68T-44352-01, it features a 11.6 mm shaft insert diameter (Ø A), 53 mm outer diameter (Ø B), and 14 mm height (C). Designed for portable and lightweight outboards, it provides stable water circulation under variable speed conditions while resisting deformation, abrasion, and saltwater corrosion.
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$ 32.96
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1-2 weeks delivery time Osculati 52.364.00 is a high-performance 6-blade impeller designed for Yamaha and Selva outboards rated at 80 to 100 HP, including XS versions. It replaces OEM code 67F-44352-00 and is compatible with both 2-stroke and 4-stroke configurations. Featuring a 20 mm insert diameter (Ø A), 58.2 mm outer diameter (Ø B), and 34.7 mm height (C), it delivers stable cooling flow under high-load marine conditions, ensuring engine protection and longevity.
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$ 48.52
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1-2 weeks delivery time Osculati 52.322.00 is a compact impeller for small 2-stroke outboard motors rated at 3 HP, compatible with Yamaha and Parsun engines. This model replaces OEM references Yamaha 6L5-44352-00 and Parsun F2-6-030000100. Designed for efficient water circulation in lightweight portable engines, it supports reliable engine cooling under low-to-medium load conditions. Ideal for travel motors and tenders operating in coastal and inland waters.
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$ 24.26
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1-2 weeks delivery time Osculati 52.363.00 is a versatile outboard impeller suitable for Yamaha, Selva, and Parsun engines ranging from 9.9 HP to 115 HP, including both 2-stroke and 4-stroke models. Replacing OEM references 63V-44352-01 and F15-06050000, it features a 12.85 mm insert diameter (Ø A), 53 mm outer diameter (Ø B), and 14 mm height (C). The 6-blade design ensures reliable water pump performance and engine cooling for a wide range of recreational and utility marine applications.
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$ 29.10
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1-2 weeks delivery time Osculati 52.400.09 is a high-reliability impeller for Yamaha, Selva, and Parsun 2- and 4-stroke outboards in the 25 to 50 HP range. Replacing OEM part numbers 6H4-44352-02, 6H4-44352-00, and Parsun F25-04-040000, this model features a 16.1 mm insert diameter (Ø A), 51.2 mm outer diameter (Ø B), and 19.05 mm height (C). The 6-blade marine elastomer design ensures consistent cooling performance under varied loads and saltwater conditions.
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$ 46
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How often should you replace the water pump impeller on a Yamaha outboard?
The water pump impeller on a Yamaha outboard should be replaced approximately every 2 to 3 years, or more frequently if the boat is used in saltwater conditions. Regular inspection of the impeller for signs of wear, damage, or loss of water flow is essential. If you notice a reduced stream of water from the engine, it may be time to replace the impeller using a Yamaha outboard water pump repair kit, which includes all necessary parts for a complete repair. Always follow the manufacturer's service schedule and consult the owner's manual for specific recommendations based on the model and usage.
If you are maintaining a Honda outboard, consider using a Honda Impeller Replacement kit to ensure proper cooling system function.
What components are included in a water pump impeller kit for Yamaha outboards?
A water pump impeller kit for Yamaha outboards typically includes the impeller itself, a housing, an impeller plate, a shaft insert, and necessary bolts or fasteners for reassembly. It may also come with a gasket or O-ring for proper sealing. Depending on the kit, some may include a repair manual or video instructions to assist with the installation process, ensuring that all components are in good condition for optimal performance of the lower unit.
What information is crucial to review before using the repair kit for Yamaha outboards?
Before using a repair kit for Yamaha outboards, it's crucial to review the detailed description of the kit to ensure it includes all necessary components for the water pump impeller replacement. Check if the kit matches the specifications for your Yamaha model, such as the correct horsepower (e.g., 150, 200, 225, 250, 300 hp) and if it is OEM or equivalent. Inspect the condition of the tools and components, ensuring they are clean and in good working order, to ensure the job can be performed correctly and efficiently.