FITS ALMOST ALL YAMAHA 700cc ATVs AND SIDE x SIDES BUT NOT ALL – CHECK FITMENT CHART ABOVE FOR YOUR VEHICLE. Wiseco forged 11.5:1 big bore piston. Big Bore top end gasket kit. Works on all 105.5mm cylinders and uses pump or race gas. At bpracingatv our kits come with the same brand name parts (in many cases they are better) as other rebuild kits you see online but we always include items no one else does. We stock the exact same parts from different companies so that when back orders occur we have an alternate part to send that is the same quality. This would be the ONLY reason your order might be slightly different when it arrives. We have bulk pricing available for every item we sell. Just let us know how many you need! Please check your order completely right when you receive it and let us know immediately if there is an issue, that way we can fix it for your ASAP. Parts that do not meet these requirements are not refundable. We stand behind all parts we sell 100%. Recommend parts be installed by a qualified, experienced mechanic. Also, we appreciate your feedback to help us improve how we do business. Please work with us and we will ALWAYS work with you.