{"product_id":"namura-piston-kit-fits-kawasaki-1982-1990-js-550-sx-550-020-over-bore-75-5mm","title":"Namura Piston Kit fits Kawasaki 1982-1990 JS 550 \u0026 SX 550 .020 Over Bore 75.5mm","description":"\u003ch2\u003eNamura Piston Kit .020 Over Bore 75.5mm for Kawasaki\u003c\/h2\u003e\u003cp\u003eThis aftermarket piston kit replaces OEM components for Kawasaki JS 550 and SX 550 models from 1982 to 1990, featuring a .020 over bore of 75.5mm to restore engine performance after cylinder wear.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura piston kit is a direct replacement for Kawasaki JS 550 and SX 550 personal watercraft, offering a .020 over bore of 75.5mm to refresh worn cylinders. The kit includes the piston, rings, wrist pin, and circlips, providing everything needed for a complete rebuild. Designed for enthusiasts and mechanics seeking reliable performance on the water.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eManufactured from high-strength aluminum alloy for durability\u003c\/li\u003e\n\u003cli\u003ePrecision-machined to 75.5mm with .020 oversize for cylinder correction\u003c\/li\u003e\n\u003cli\u003eIncludes high-quality piston rings for optimal compression\u003c\/li\u003e\n\u003cli\u003eFeatures a properly weighted wrist pin for balanced operation\u003c\/li\u003e\n\u003cli\u003eEngineered to meet or exceed OEM specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Kawasaki JS 550 (1982-1990)\u003c\/li\u003e\n\u003cli\u003efor Kawasaki SX 550 (1982-1990)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCommonly used in personal watercraft engine rebuilds\u003c\/li\u003e\n\u003cli\u003eIdeal for restoring power after cylinder wear or scoring\u003c\/li\u003e\n\u003cli\u003eSuitable for recreational and competitive jet ski applications\u003c\/li\u003e\n\u003cli\u003ePreferred by DIY mechanics and professional shops for reliability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e75.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.020 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Includes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, rings, wrist pin, circlips\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this piston kit compatible with standard bore cylinders? \u003cstrong\u003eA:\u003c\/strong\u003e No, this is a .020 over bore size intended for cylinders that have been bored out, not standard bore. Always measure your cylinder before purchasing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does the kit include the circlips? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the Namura piston kit comes complete with piston, rings, wrist pin, and circlips for a full rebuild.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44890405961814,"sku":"SZ1F10827","price":110.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_5cca9f96-5caa-4b7a-9079-d714aa8561e0.jpg?v=1781138972","url":"https:\/\/www.solidspare.com\/products\/namura-piston-kit-fits-kawasaki-1982-1990-js-550-sx-550-020-over-bore-75-5mm","provider":"Solid Spare","version":"1.0","type":"link"}