Impeller for Honda ref. 19210-ZV9-A31/032 Impeller for Honda engines 4-stroke from 8 to 20 hp Permotors: BF 8 BF 9.9 BF 10 BF 15 BF 20 Inside diameter: 17.2 mm Outer diameter: 55.90 mm Height: 20.2 mm No. of blades: 6 Compass type: H IN CASE OF ANY DOUBTS BEFORE PROCEEDING WITH THE PURCHASE, PLEASE SEND US A COPY OF YOUR ENGINE MANUAL BY EMAIL FOR CONFIRMATION OF THE SPARE PARTS, WHICH MAY VARY ACCORDING TO THE ENGINE MODEL