FITS ALL POLARIS RZR AND SPORTSMAN 800 YEARS AND MODELS! JE or Wiseco forged pistons. Hotrods HD crank with rods. Complete Vertex gasket kit - head base exhaust crankcase covers o-rings. Install and break in tip sheet.Pistons use pump or race gas. We recommend that this be installed by a qualified mechanic with experience doing this type of work. The item "RZR800 RZR 800 RZRs Motor Engine Parts Rebuild Kit Complete Top Bottom End Crank" is in sale since Thursday, January 4, 2018. This item is in the category "eBay Motors\Parts & Accessories\ATV, Side-by-Side & UTV Parts & Accessories\Engines & Components". The seller is "bpracingatv" and is located in Upland, California. This item can be shipped worldwide.