We carry nearly all accessories for the Kawasaki Jet Ski 1988 JS550 SX Personal Watercraft. If you are looking for a battery or electronic accessory for the Kawasaki Jet Ski 1988 JS550 SX and cannot find it, please feel free to contact us. We are always adding new products to our site, and we would love to help you find it. We always have people, not computers, that answer the phone.