Fizzle Racing Toggle Search Account Checkout Cart Shop Online All SeaDoo Performance Parts All Yamaha Performance Parts Apparel & Decals Sea-Doo Blow Off Valve Kits Sea-Doo DashPac Modules Sea-Doo ECU Tunes & Fueling Sea-Doo Engine Parts Sea-Doo Intercoolers Sea-Doo Pump and Handling Sea-Doo Superchargers Tools Yamaha Blow Off Valve Kits Yamaha ECU Tunes & Fueling Yamaha Engine Parts Yamaha Pump and Handling Yamaha Superchargers Yamaha Intercoolers Yamaha Performance Packages Connect With Us Install Instructions About Us Search site Submit search Resources International Shipping News & Events Tech Tips Sea-Doo Technical Information Sea-Doo Supercharger System Dealers & Shops 4-Tec Evolution Nav Menu 3 Nav Menu 4 Nav Menu 5 Nav Menu 6 Nav Menu 7 Nav Menu 8 Home > Shop Online > RIVA Yamaha Supercharger Shaft Uprgrade Kit Our Price: $569.95 Product Code: RY17040-UK-6S5-4 Qty: Description The RIVA Super-Duty GEN-4 SHO/SVHO Supercharger Shaft Kit provides the ultimate in reliability for high boost applications. Kit features a revolutionary hydraulic shaft stabilization bearing that limits shaft deflection and wear. Bearing stabilizes end of supercharger shaft via high pressure oil film dramatically increasing the stability of the system. Hydraulic end bearing and one-piece shaft bearing are fed by a through-shaft oiling system providing superior lubrication. Oil is delivered by braided stainless line and injected into a billet end cap that houses hydraulic bearing. Shaft is precision machined from a single piece of high-strength billet steel producing shaft, collar & gear as one piece. This eliminates the common failure point on stock shafts where OEM gear is pressed onto shaft. Shaft also features larger diameter threads & nut for added strength. Kit includes new one piece bearing with increased surface area providing improved torsional stability of shaft. Bearing features superior materials & finish treatment for reduced friction & abrasion resistance. This Shaft & Bearing Kit is a direct replacement for OEM parts and requires no additional modifications for use.Key Features Include:Hydraulic end bearing minimizes shaft deflection.Through-shaft oiling system maximizes lubrication.Braided stainless steel oil line delivers additional lubrication.One piece shaft/collar/gear construction. Stronger billet material & superior surface finish.Larger diameter threads & nut.One-piece bearing improves shaft stability.Bolt-on installation (no machining required).Manufactured exclusively for RIVA Racing by HKS. Related Items 90 Plus Kit for GP1800 SVHO Solas 13/18 Yamaha SVHO 160MM OEM Sea-Doo 230/255/260 Complete Supercharger Fizzle Z1 Supercharger Impeller (17+ PSI) Our Price: $9,000.00 Our Price: $316.95 Sale Price: $1,250.00 Our Price: $499.00 Fizzle X4 137+4 Supercharger Impeller (16+ PSI) Sea-Doo 230/255/260 Drop-in Wheel DDR Carbon Fiber Sponsons For 2021+ Sea-Doo RXP Fizzle Z135 Supercharger Impeller (18+ PSI) Sea-Doo 300 Drop-in Wheel Fizzle Yamaha Intake Ribbon Removal Sleeve Our Price: $499.00 Our Price: $650.00 Our Price: $499.00 Share your knowledge of this product. Be the first to write a review »