Key benefits Maintains engine cooling efficiency by delivering a reliable water pump impeller function that matches OEM performance. OEMequivalent replacement that preserves cooling system operation and helps extend engine life. Broad compatibility across many 4stroke outboard engines, including F6, F8, F9.9 and models produced from 2000 to 2015 such as F6B, BMH, A, AM, AW, ML, MH. Precise sizing for stable, efficient water pump operation. Durable in marine environments thanks to corrosion and wearresistant materials. Compatibility and specifications Applicable models: suitable for a variety of 4stroke outboard engines, including F6, F8, F9.9 and other models produced from 2000 to 2015; compatible with F6B, BMH, A, AM, AW, ML, MH and similar models. OEM replacement: can OEM part numbers 188910, 500368, 945614, ensuring equivalent water pump performance. Size: impeller height 13.97 mm; outer diameter 52.83 mm; inner shaft insertion diameter 11.96 mm. Material: corrosionresistant and wearresistant materials, designed for longterm operation in marine environments to ensure durability and reliability. Performance and reliability The design and dimensions precisely meet the size requirements of a variety of 4stroke outboard engines, ensuring stable and efficient water pump function. Use scenarios Routine maintenance: the water pump impeller on compatible F6, F8, F9.9 and other 2000–2015 models to prevent cooling system failures and overheating. Harsh marine environments: install on boats operating in saltwater or with extended trips to maintain reliable engine cooling and reduce wear on cooling components. OEMequivalent replacement: keep as a ready replacement to maintain OEM performance when servicing engines in the F6, F8, F9.9 family or related 2000–2015 models.