Wiseco W4955 Wiseco GROOVE LOCK SPACER 4.127 - 4.191inch Oil Rail Support Shelf Stock

4.121 - 4.154 Groove Lock Spacer, .200 Radial Wall

4.121 - 4.154 Groove Lock Spacer

Born over 80 years ago from the passion for racing, Wiseco is a world leader in manufacturing high-performance, forged pistons for the motorcycle, automotive, ATV, snowmobile, personal watercraft, and outboard marine markets. Wiseco Groove Lock Spacers are engineered, forged, and machined on cutting-edge equipment in the U.S. at Wiseco's Mentor, Ohio manufacturing facility.; Wiseco offers a range of performance accessories to help you get your performance rebuild done right, including ring compressors, chamber mold kits, piston components, and more.