1【Basic Information】 Jet Boats Part Impeller Size：6 7/8； OEM NO. 855708T60 ；Fit with #1833 Flanged Liner & Wear Ring； 2【Compatible with Multiple Brands and Models】 Fits Mercury, Evinrude Johnson. For specific compatibility details, please check the product description or compatibility chart. 3.【Polished Stainless Steel】 Polished impellers with sharp edges optimize water flow by reducing turbulence, enabling the jet pump system to achieve superior acceleration 4.【Superior Performance】 Tests have shown that the polished impeller increases speed by 2-3 km/h compared to standard impellers, optimizing propulsion efficiency. If you need the most efficiency out of your jet then this is the product for you. 5.【Professional and High-Quality Service】 We specialize in manufacturing jet boat impellers and liners for small, medium, and large series, offering a full range of models to suit various needs. Renowned for their exceptional quality and reliability, our products are highly sought after by jet boat owners worldwide. 6 7/8 Part No.1833 Polished Stainless 3 Blades Outboard Jet Impeller Fits Mercury, Evinrude Johnson Models Outboard Jets Large Series (For Liner/ Wear Ring 1833)