O-Ring for Powervalve Spacer $ 1.75 SKU: 93210-11453 O-ring for use with powervalve spacer. Back to: Gaskets and O-Rings ×Close Yamaha Yamaha is a leader in businesses ranging from musical instruments and audio & video products to information technology products, new media services, home furnishings, auto components, specialty metals, music education and resort facilities. http://www.global.yamaha.com/ Description O-ring to suit powervalve spacer 5KE-1131W-00 found on all models using cylinders from 2003 onwards.