The Mercury impeller is a vital part of the outboard motor’s cooling system, designed to circulate water through the engine to prevent overheating. Over time, the impeller can wear down due to continuous use and exposure to debris, requiring periodic replacement to maintain optimal engine cooling and performance.
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1-2 weeks delivery time Osculati 52.314.00 is a compact rubber impeller designed for Mercury 2-stroke outboards from 3.5 to 9.9 HP manufactured since 1980. Replaces OEM part numbers 47-68988 and 47-89980. With a 6-blade design, 11 mm shaft bore, and 32 mm outer diameter, this impeller ensures reliable water flow and efficient engine cooling in legacy portable outboards. Ideal for service, maintenance, or water pump overhauls.
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$ 23
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1-2 weeks delivery time Osculati 52.320.01 is a flexible impeller for Mercury 2-stroke outboards from 4 to 10 HP, replacing OEM part numbers 47-65957 and 47-89981. Designed for efficient cooling in compact engines, it features a 6-blade rubber structure with a precise 11.6 mm bore, 32 mm outer diameter, and 14.4 mm height. This impeller provides consistent water flow to prevent overheating, making it ideal for seasonal maintenance or full pump rebuilds in small outboard models.
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$ 22.51
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1-2 weeks delivery time Osculati 52.315.00 is a high-performance rubber impeller designed for Mercury, Tohatsu, and Parsun outboards in the 4 to 6 HP range, covering both 2-stroke and 4-stroke variants. This model replaces Mercury 47-16154-3, Tohatsu 369-65021-1/M, and Parsun T5-03000300 references. Engineered for durability and consistent flow, it provides reliable cooling and protects engines from overheating. The impeller has a 10.25 mm bore, 33.6 mm diameter, and 14.2 mm height.
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$ 25.75
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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 52.320.00 is a replacement impeller for Mercury 2-stroke outboards in the 6 to 9.8 HP range. Compatible with OEM part number 47-22748, this 6-blade rubber impeller is designed for efficient water circulation in compact engines. With precise dimensions (11.6 mm inner bore, 32 mm outer diameter, 14.4 mm height), it delivers optimal cooling and fits securely in legacy water pump housings. Ideal for annual maintenance or full pump rebuilds.
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$ 30.04
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1-2 weeks delivery time Osculati 52.318.00 is a flexible rubber impeller designed for Mercury outboards in the 6–15 HP range, covering both 2-stroke and 4-stroke models. Replacing OEM part number 47-42038, it ensures consistent water pump operation and protects engines from overheating. With a 13 mm shaft bore and 58.8 mm outer diameter, it is built for reliability, quick installation, and long-lasting performance in compact marine engines.
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$ 32.36
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1-2 weeks delivery time Osculati 52.320.02 is a rubber impeller designed for Mercury 2-stroke outboards in the 20 to 30 HP range. Replacing OEM part numbers 47-65958 and 47-89982, it ensures reliable water circulation in mid-range 2-stroke engines. With a 6-blade configuration, 11.6 mm inner bore, 32 mm outer diameter, and 14.4 mm height, it provides consistent cooling and fits OEM pump housings precisely.
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$ 24.30
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1-2 weeks delivery time Osculati 52.320.05 is a durable 6-blade impeller designed for Mercury 2-stroke outboards (18–40 HP) and 4-stroke engines (25–40 HP), including post-1996 models. It replaces OEM part numbers 47-85089-1 and 47-85089-3. Built from flexible, wear-resistant rubber, this impeller ensures consistent water circulation and optimal engine cooling. Its precise fit (16 mm shaft, 73 mm diameter) guarantees long-lasting pump efficiency under both freshwater and saltwater use.
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$ 26.42
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1-2 weeks delivery time Osculati 52.320.03 is a high-performance rubber impeller designed for mid-range 2-stroke outboards from Mercury and Suzuki. It replaces Mercury part numbers 47-20268, 47-65959, and 47-89983T, as well as Suzuki 17461-95201. Suitable for 3-cylinder Mercury engines (30–70 HP) and 4-cylinder models (40–125 HP), this 6-blade impeller ensures powerful water circulation to keep your engine operating within safe temperature ranges. Its large 19.13 mm bore and 51.8 mm diameter are engineered for secure fit and OEM-grade reliability.
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$ 25.45
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1-2 weeks delivery time Osculati 52.378.00 is a heavy-duty impeller designed for Mercury 4-stroke outboards in the 40–60 HP range. Replacing OEM part number 47-19453T, this 6-blade rubber impeller ensures efficient water flow through the cooling system, protecting your engine from overheating. With its 19.25 mm inner bore, 78.2 mm outer diameter, and 25.15 mm height, it’s ideal for annual maintenance or pump rebuilds in mid-range Mercury 4-stroke engines.
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$ 36.37
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1-2 weeks delivery time Osculati 52.320.04 is a high-performance impeller specifically designed for Mercury EFI and Optimax 2-stroke outboards from 65 to 225 HP. This heavy-duty 6-blade rubber impeller replaces multiple OEM references, including 47-65960, 47-89984, 47-803631T, and others. Engineered with a 22.3 mm bore, 60 mm diameter, and 33.8 mm height, it delivers superior water flow to support advanced high-output engines under demanding marine conditions. Includes gasket.
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$ 36.83
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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 52.344.00 is a reliable replacement impeller for Mercury, Tohatsu, and Parsun small outboards ranging from 4 to 9.8 HP. Compatible with OEM references including Mercury 47-436065-2, Tohatsu 3B2-65021-1/M, and Parsun F8-04000200, this 6-blade rubber impeller ensures optimal engine cooling by maintaining a steady water flow. With a 12 mm bore, 40 mm outer diameter, and 18 mm height, it’s ideal for routine pump servicing and maintenance.
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$ 28.05
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1-2 weeks delivery time Osculati 52.313.00 is a compact 6-blade rubber impeller designed for small 2-stroke outboards by Mercury, Tohatsu, and Evinrude, ranging from 2 to 3.3 HP. Compatible with OEM part numbers Mercury 47-95289/2, Tohatsu 309-65021-1/M, and Evinrude 114812, it ensures consistent water circulation for cooling even in compact engines. This impeller features a 12 mm inner diameter, 41 mm outer diameter, and 14 mm height, providing a precise fit and optimal performance for light-duty marine applications.
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$ 22.18
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1-2 weeks delivery time Osculati 52.300.27 is a high-quality replacement impeller compatible with Mercury and Evinrude 2-stroke outboard engines from 20 to 35 HP produced between 1978 and 1991. This flexible-blade water pump impeller replaces OEM references Mercury 47-888689 and Evinrude 395289, 385289, 5009588. Designed for efficient cooling and long service life, the impeller features 6 blades, a brass insert, and meets OEM dimensions for reliable fit and performance in legacy 2-stroke models.
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$ 27.42
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1-2 weeks delivery time Osculati 52.301.00 is a high-quality water pump impeller compatible with Mercury outboards (including Optimax and Alpha series) from 50 to 275 HP and Honda 4-stroke outboards from 75 to 90 HP. Replacing OEM part numbers Mercury 47-43026T2, 47-43-0262Q02, 47-43026-2, 47-11590M and Honda 19210-ZW1-003, 19210-ZW1-303, this 6-blade impeller is built for durability, efficient water flow, and OEM-grade cooling performance. Constructed with a robust rubber compound and brass insert, it ensures proper fit and reliable cooling under demanding marine conditions.
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$ 29.97
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How does the material of the Mercury impeller affect its durability in marine environments?
The material of a Mercury impeller plays a crucial role in its durability in marine environments. Impellers made from high-quality materials like nitrile rubber or composite compounds are designed to withstand the harsh conditions of saltwater and resist wear, corrosion, and UV damage. This ensures reliable performance in mercury outboard engines, reducing the risk of failure and extending the life of the product.
How does the Mercury impeller affect the water flow and cooling efficiency in an outboard motor?
The Mercury impeller is a critical component of the water pump system in an outboard motor, responsible for drawing water from the surrounding environment and circulating it through the engine to keep it cool. A properly functioning impeller ensures consistent water flow, preventing the engine from overheating. If the impeller is damaged or worn, it can reduce water flow, leading to cooling inefficiency and potentially causing engine damage due to excessive heat.
What types of Outboard Impellers do you have in your catalog?
Evinrude Impeller, Suzuki Outboard Impeller, Mercury Impeller, Honda Impeller, Tohatsu Impeller, Parsun Impeller, Yamaha Impeller, Selva Impeller