{"product_id":"namura-040-over-bore-piston-kit-for-kawasaki-klx400-klx400r-klx400sr-91mm","title":"Namura .040 Over Bore Piston Kit for Kawasaki KLX400, KLX400R \u0026 KLX400SR 91mm","description":"\u003ch2\u003eNamura .040 Over Bore Piston Kit for Kawasaki\u003c\/h2\u003e\u003cp\u003eThis aftermarket piston kit with a 91mm bore and .040 over size is designed to restore compression and performance in compatible Kawasaki KLX400 series engines. It provides a reliable replacement for worn pistons in KLX400, KLX400R, and KLX400SR models.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura .040 over bore piston kit provides a precision-machined 91mm piston for Kawasaki KLX400 motorcycles. It serves as a reliable replacement for worn pistons, restoring compression and performance. This piston kit is designed for off-road and trail riding applications.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e91mm bore diameter with .040 oversize for increased displacement\u003c\/li\u003e\n\u003cli\u003eHigh-strength aluminum alloy construction for durability\u003c\/li\u003e\n\u003cli\u003ePrecision-ground rings for optimal sealing\u003c\/li\u003e\n\u003cli\u003eDesigned to match OEM specifications for easy installation\u003c\/li\u003e\n\u003cli\u003eIncludes piston, rings, wrist pin, and clips\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Kawasaki KLX400\u003c\/li\u003e\n\u003cli\u003efor Kawasaki KLX400R\u003c\/li\u003e\n\u003cli\u003efor Kawasaki KLX400SR\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTrail riding and off-road racing\u003c\/li\u003e\n\u003cli\u003eEngine rebuilds and top-end overhauls\u003c\/li\u003e\n\u003cli\u003eRestoring lost compression in high-mileage engines\u003c\/li\u003e\n\u003cli\u003eEnhancing engine performance for competitive use\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\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e91mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Kawasaki KLX400, KLX400R, KLX400SR\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 Does this kit include a wrist pin? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit includes a wrist pin, circlips, and piston rings for a complete replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can this piston be used with stock cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e The .040 over bore requires your cylinder to be bored to the corresponding size; it is not a direct drop-in replacement for a standard cylinder.\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":44890806517846,"sku":"SZ1F13291","price":164.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_160aa0a0-8852-4ede-ab34-e7a59fee0234.jpg?v=1781143929","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-piston-kit-for-kawasaki-klx400-klx400r-klx400sr-91mm","provider":"Solid Spare","version":"1.0","type":"link"}