{"product_id":"namura-020-over-bore-piston-kit-for-kawasaki-klx400-klx400r-klx400sr-90-5mm","title":"Namura .020 Over Bore Piston Kit for Kawasaki KLX400, KLX400R \u0026 KLX400SR 90.5mm","description":"\u003ch2\u003eNamura .020 Over Bore Piston Kit for Kawasaki\u003c\/h2\u003e\u003cp\u003eThis .020 oversize piston kit for Kawasaki KLX400, KLX400R, and KLX400SR engines restores compression with a 90.5mm bore diameter.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura .020 over bore piston kit for Kawasaki KLX400 series is a high-quality replacement that restores lost compression. This 90.5mm piston kit is engineered from durable cast aluminum alloy for reliable performance in your KLX400, KLX400R, or KLX400SR engine. Whether rebuilding or upgrading, this piston kit delivers consistent power and durability.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e.020 oversize for added displacement and compression\u003c\/li\u003e\n\u003cli\u003e90.5mm bore diameter for exact fit\u003c\/li\u003e\n\u003cli\u003eCast aluminum alloy construction for strength and heat dissipation\u003c\/li\u003e\n\u003cli\u003eIncludes piston rings and wrist pin for complete installation\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for consistent clearance\u003c\/li\u003e\n\u003cli\u003eMeets OEM specifications for reliability\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\u003eOff-road trail riding and enduro racing\u003c\/li\u003e\n\u003cli\u003eMotocross track days\u003c\/li\u003e\n\u003cli\u003eRecreational desert riding\u003c\/li\u003e\n\u003cli\u003eEngine rebuilds and performance upgrades\u003c\/li\u003e\n\u003cli\u003eRestoring vintage KLX400 motorcycles\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 Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90.5mm\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 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCast aluminum alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, rings, wrist pin\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 piston kit need any special tools for installation? \u003cstrong\u003eA:\u003c\/strong\u003e Basic engine rebuilding tools are sufficient, but we recommend professional installation to ensure correct ring gap and clearance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this piston compatible with standard Kawasaki KLX400 cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it is designed for the stock 90.5mm bore with .020 oversize, so the cylinder must be bored to matching spec.\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":44949758869590,"sku":"SZ1F14205","price":197.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_783cb375-fa3a-4e59-99dd-e04a0700420e.jpg?v=1781398168","url":"https:\/\/www.solidspare.com\/products\/namura-020-over-bore-piston-kit-for-kawasaki-klx400-klx400r-klx400sr-90-5mm","provider":"Solid Spare","version":"1.0","type":"link"}