CEF (Costruzioni Elettromeccaniche di Friuli) is a respected Italian brand in the marine spare parts industry, particularly known for its high-quality flexible impellers and shaft bearings for boat engines. CEF manufactures a wide range of replacement impellers compatible with most inboard/outboard motors and marine water pumps, all made in Italy to rigorous specifications (often meeting or exceeding OEM standards). In addition to impellers, CEF produces related marine engine parts and rubber components, valued for their reliability and long service life. Distributed globally, CEF has become synonymous with dependable engine cooling and maintenance parts – boaters and marine mechanics often choose CEF impellers as a cost-effective yet premium alternative to original parts, ensuring efficient engine performance and cooling.
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Products
Impeller for Yamaha/Mariner 6-8 HP (4-Stroke Models) – High-Performance Cooling Impeller
This impeller is designed for Yamaha/Mariner 4-stroke outboards in the 6-8 HP range, providing reliable cooling and protection against overheating. Built to original specifications, it fits perfectly and performs flawlessly.
- Compatible with Yamaha/Mariner 4-stroke 6 HP, 8 HP (and certain 9.9 HP variants) – replaces OEM impeller 68T-44352-00/01
- Premium neoprene rubber construction resists saltwater and thermal stress
- Precise 6-blade design for optimal coolant flow at all engine speeds
- Direct replacement that restores factory engine cooling with no adjustments needed
- Also fits equivalent Selva models (Italian Yamaha-based engines) in the same power range
In stock
Impeller for Yamaha/Mariner 6-8 HP (2-Stroke Models) – Durable 6-Blade Water Impeller
A reliable impeller for Yamaha/Mariner 6-8 HP two-stroke outboards, restoring proper cooling and extending engine life. This replacement matches OEM quality and is built to withstand harsh conditions.
- Compatible with Yamaha/Mariner 6 HP and 8 HP 2-stroke engines (e.g., Yamaha models 6C, 8B) – replaces OEM impeller 6G1-44352-00
- Also fits equivalent Mariner models (Yamaha-based) from the 1980s-90s
- Constructed from high-strength rubber, resistant to wear and saltwater
- 6 blades provide consistent cooling water flow to protect the engine from overheating
- Easy to install with exact dimensions matching the original water pump
In stock
Impeller for Yamaha/Mariner 3 HP (Compatible with Parsun 2.5-3HP) – Replacement Water Pump Fin
Small outboard engines need reliable cooling too. This impeller for Yamaha/Mariner 3 HP (and Parsun 2.5-3 HP) will restore your water pump’s function and protect your motor from overheating.
- Compatible with Yamaha 3 HP (2-stroke) and Yamaha 2.5 HP (4-stroke) outboards, as well as Mariner/Parsun equivalents
- Replaces OEM Yamaha impeller 6L5-44352-00 and delivers performance equal to the original
- Made from high-quality elastomer that resists aging and saltwater damage
- Improves coolant circulation in small engines that run at high RPMs
- Quick and easy to install – a key maintenance item for every small outboard
In stock
Impeller for Yamaha 2 HP (Fits Mariner 2 HP) – Replacement Water Pump Blade
Keep your smallest outboard properly cooled with this impeller for Yamaha 2 HP (and Mariner 2 HP). It’s a direct replacement for the original rotor and protects your engine from overheating during operation.
- Compatible with Yamaha 2 HP two-stroke engines (models 2A, 2B, 2C) and equivalent Mariner 2 HP motors
- Replaces OEM impeller 646-44352-01 (Yamaha original part)
- Made of high-quality rubber that withstands prolonged use and high RPMs
- 6-blade design ensures a continuous flow of water to cool your little engine
- A must-have spare part for maintaining any small outboard, with quick and easy installation
In stock
Impeller for Tohatsu 6-9.8 HP (Compatible with Mercury/Parsun) – 6-Blade Water Impeller
Ensure optimal cooling for small Tohatsu, Mercury, and Parsun outboards with this high-quality impeller. Specially designed for 6-9.8 HP models, it provides reliable water flow and protects your motor from overheating.
- Compatible with Tohatsu 6/8/9.8 HP 2-stroke engines and Tohatsu/Mercury 4/5/6 HP 4-stroke models
- Also fits Parsun 4/5/6 HP four-strokes and Parsun 8 HP (clone of Tohatsu 9.8)
- Replaces OEM parts: Tohatsu #3B2-65021-1M and Mercury #47-436065-2
- Made of flexible, durable rubber to ensure continuous cooling water flow
Easy to replace – a critical spare for maintaining small boat engines
In stock
Impeller for Yamaha/Mariner 25-30 HP – High-Durability Water Pump Impeller
This impeller ensures reliable cooling for powerful Yamaha/Mariner 25-30 HP two-stroke engines. It’s built to withstand high stresses and keep your engine at optimal temperature even during prolonged use.
- Compatible with Yamaha 25 HP and 30 HP two-stroke outboards (series 25B, 30H and equivalents)
- Fits Mariner 25/30 HP models (Yamaha-based versions from the 1980s-90s)
- Replaces OEM Yamaha impeller 689-44352-02 and Mercury 47-84797M (identical dimensions)
- Made from durable materials to endure high RPM and operating temperatures
- Delivers strong cooling water flow, protecting your engine from overheating under full load
In stock
Johnson/Evinrude 20–35 HP Outboard Impeller
A high-quality water pump impeller designed for Johnson/Evinrude 20–35 HP outboards. Ensures reliable engine cooling and restores peak performance.
- Compatible with Johnson/Evinrude 2-stroke engines 20, 25, 30, 35 HP (models ~1978–1991)
- Replaces OEM part numbers Johnson/Evinrude #395289, 385289, 5009588 and Mercury #47-888689
- Durable 6-blade rubber impeller with corrosion-resistant brass hub
- Maintains optimal water flow to prevent engine overheating
- Easy installation – ideal for routine maintenance of your outboard
In stock
Mercury 50–275 HP & Honda 75–90 HP Outboard Impeller
Versatile impeller compatible with a wide range of Mercury outboards (50–275 HP, including Optimax 2-strokes and MerCruiser Alpha One sterndrive pumps) and Honda 4-stroke outboards (75–90 HP). Provides robust water flow for high-power engines, preventing overheating under heavy loads.
- Fits Mercury/Mariner 2-stroke outboards 50–275 HP (incl. Optimax DFI models) and MerCruiser Alpha One Gen II sterndrives
- Also compatible with Honda 4-stroke outboards 75–90 HP (replaces Honda OEM #19210-ZW1-003 / 19210-ZW1-303)
- Large 6-blade impeller (89 mm OD) made of heavy-duty neoprene for high-volume cooling
- Reinforced brass hub/key ensures precise fit and long service life
- Delivers maximum cooling water flow to protect powerful engines at high RPM
In stock
Yamaha 115–300 HP Outboard Impeller (Fits Yamaha/Mercury/Selva)
Quality replacement impeller for large Yamaha outboard engines 115–300 HP (both 2-stroke and 4-stroke models). Also compatible with equivalent Mercury (e.g. 225 HP 4-stroke) and Selva outboards. Delivers high cooling flow for powerful motors, ensuring safe operating temperatures.
- Designed for Yamaha outboards 115–300 HP (covers V4, V6, V8 models in 2T & 4T)
- Also fits Mercury/Mariner 4-stroke 225 HP models (Yamaha-based) and Selva 115–250 HP engines
- Replaces OEM Yamaha impeller part #6E5-44352-00 / 6E5-44352-01
- Sturdy 6-blade neoprene impeller with precision brass hub for high-volume pumps
- Provides reliable cooling performance for high-horsepower offshore and performance engines
In stock
Mercury/Mariner 65–225 HP Impeller (2-Stroke & Optimax, Alpha One Gen I)
Replacement impeller for Mercury/Mariner outboards ~65–225 HP (older 2-stroke series including EFI & Optimax DFI models) and MerCruiser Alpha One (Gen I) sterndrive water pumps. Delivers reliable cooling for mid- to large-size engines and stern drives, preventing overheating in older systems.
- Fits Mercury/Mariner 2-stroke outboards ~65, 75, 90, 115, 150, 175, 200, 225 HP (late 1970s–1990s carb/EFI/Optimax engines)
- Compatible with MerCruiser Alpha One Gen I sterndrive pump (pre-1992 models)
- Replaces Mercury OEM impeller #47-65960, 47-89984T4, 47-803631T, etc.
- 6-blade high-flow design (~60 mm OD) for efficient cooling water delivery
- Robust neoprene construction for longevity; includes key for secure drive
In stock

