Our replacement billet Sea-Doo 185 / 215 supercharger impeller is precision machined from aerospace grade 7075 aluminum alloy. Improved performance over OEM supercharger thanks to more precise and consistent impeller blade geometry. 20% lighter than OEM impeller significantly increasing clutch life! Replaces BRP OEM part number: 420867191 Direct replacement for all 215 Sea-Doo 4-Tec Supercharged models. Perfect for those rebuilding their 185 / 215 supercharger with wheel damage. Purchase on eBay You can purchase this item from us on eBay but it’s less expensive buying it on our website.