Features: Color: Black Material: Rubber Diameter: Approx. 3.4cm/ 1.34" Number of Blades: 6 This replace part number: For Mercury Water pump impeller 47-16154-3 For Tohatsu Water Pump Impeller 369-65021-1, Sierra-18-3098 This part suits the following engines: For Mercury Mariner F4/F5/F6 1cyl For Mercury Mariner 1cyl 4&5HP made in Japan (not Mariner Yamaha-style) For Tohatsu 2-Stroke - M3.5B2, M4C, M5B & M5BS 4-Stroke - MFS2A, MFS2B, MFS2.5A, MFS2.5B, MFS3.5A, MFS3.5B, MFS4A2 (Serial Number 12183 and up), MFS4B, MFS4C, MFS5A2 (Serial Number 19757 and up), MFS5B, MFS5C, MFS6A2 (Serial Number 01751 and up), MFS6B & MFS6C, MFS4/5/6 ABC, M4/5 AB, M3.5A/A2 Package Included: 1X/2X Water Pump Impeller Dear buyers, we appreciate your business, if you are satisfied with our service, please leave us a positive feedback and rate the details of the transaction (Detailed Seller Ratings) with a "PERFECT 5 STARS". If you have any problems, broken, quality problems, please don't worry, and don't leave bad feedback. Please send us an email first, we will reply you as soon as possible, please allow us to respond within 12 hours. We understand your mood, and will provide you with the best solution for your problem, please give us the opportunity to solve the problem, For any case,please feel free to come to us,we are always here. look forward to and thank you for your trust.