Pay in 4 interest-free payments of $31.25 Learn more
Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
10:1 standard pistons
Aftermarket stock bore cylinders (Pair)
1 Year Warranty included for added peace of mind*
CNC Machined from hi-grade steel
Heat-treated
Yamaha Banshee 421cc Serval Pro-X Pistons Pro X 4mm 68mm Bore Stroker & Bearings Ranger 400 10:1 standard pistonsYamaha Banshee 421cc Pro X Stroker Kit: Ultimate Performance Upgrade with 68mm Pistons & Full Bearing Set Revitalize your Yamaha Banshee with the top notch 421cc Pro X Stroker Kit! Designed for all Yamaha Banshee ATV models and years, this premium kit includes high performance 68mm pistons made in Japan, ensuring durability and exceptional power. What's Included: Pro X 68mm Pistons (Pair): Engineered for power and longevity. Piston Rings: Precision