Features: 1.Replacing OEM numbers for reference: 47?850893, 47?85089?10, 47?8508920. 2.6 blades water pump impeller, perfectly fit for Mariner 4?stroke 2?stroke engines. 3.Premium neoprene material, brass hub, tough and durable, which can withstand harsh marine environment. 4.Simple installation, no need of complex operations. Direct replace the old water pump impeller. 5.Strictly follow the manufacturing standard to make sure excellent performance. Specification: Item Type: Water Pump Impeller_x000D_ Material: Neoprene with Brass Hub_x000D_ OEM Part Number: 47-850893 / 47-85089-3 / 47-85089-10 / 47-8508920 / 47-8M0027792 / 47-850891 / 47-85089 / 47-8M0024502._x000D_ Replaces:_x000D_ Fit for Sierra: 18-3057_x000D_ Fit for GLM: 89640_x000D_ Fit for Mallory: 9-45303 9-45303-10_x000D_ Number of Blades: 6_x000D_ External Impeller Overall Diameter: Approx. 73.15mm/2.9in_x000D_ Internal Shaft Insert Diameter: Approx. 16.03mm/0.6in_x000D_ Fitment:_x000D_ Fit for Mariner 4-stroke engines:_x000D_ Fit for 9.9 HP 4-stroke Bigfoot 0G760300 - Up_x000D_ Fit for 15 HP 4-stroke Bigfoot 0G590000 - Up_x000D_ Fit for 25 HP 4-stroke carb 0G590000 - 1B344298_x000D_ Fit for 30 HP 4-stroke carb.std. 0G760300 - Up_x000D_ Fit for 30 HP 4-stroke EFI 0T409000 - 1B226999_x000D_ Fit for 40 HP 4-stroke carb.std. 0G760300 - Up_x000D_ Fit for 40 HP 4-stroke EFI std. 0T409000 - 1B226999_x000D_ Fit for 40 HP 4-stroke EFI short shaft 1B227000 - 1B344398_x000D_ Fit for 45 HP 4-stroke Bodensee 0G231123 - 0T178499_x000D_ Fit for 50 HP 4-stroke standard 0G231123 - 0T178499 _x000D_ _x000D_ Fit for Mariner 2-stroke engines:_x000D_ Fit for 18 HP 18XD 5837437 - Up_x000D_ Fit for 20 HP 20XD 6443973 - 0T800749_x000D_ Fit for 25 HP 25XD 5705532 - Up_x000D_ Fit for 25 HP SeaPro 0B238464 - Up_x000D_ Fit for 25 HP 3 Cyl. 0E268781 - Up_x000D_ Fit for 30 HP 2 Cyl. (644cc) 0G053314 - 0T598999_x000D_ Fit for 30 JET 0G590000 - Up_x000D_ Fit for 40 HP 2 Cyl. (644cc) 0G053314 - Up_x000D_ Fit for 40 HP 3 Cyl. 0G531301 - Up_x000D_ Fit for 50 HP 3 Cyl. 0G590000 - Up_x000D_ _x000D_ Fit for Chrysler/Force Outboard models:_x000D_ Fit for 25hp (1996-98) serial# E127700-E344999_x000D_ Fit for 40/50hp (1995-99) serial# E093700-E369299_x000D_ Fit for 75hp (1999) serial# E345000-up PackageList: 1 x Water Pump Impeller Note: Please double check the part number of your item, matching information is for reference only. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!