Banshee 68mm 68 mil Big Bore 4 mil Wiseco Pistons Blaster Style 421 573M06800

  
FITS ALL YAMAHA BANSHEE MODELS AND YEARS!! Wiseco 573M06800 forged piston pair. For all 421cc Banshee big bore stroker engines. Please check your order completely right when you receive it and let us know immediately if there is an issue. This 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%. We ALWAYS STRONGLY recommend parts be installed by a qualified, experienced mechanic.