{"product_id":"namura-standard-bore-piston-kit-size-b-94-96mm-for-yamaha-wr450f-2003-2015-95mm","title":"Namura Standard Bore Piston Kit Size B 94.96mm for Yamaha WR450F 2003-2015 95mm","description":"\u003ch2\u003eStandard Bore Piston Kit for Yamaha WR450F\u003c\/h2\u003e\u003cp\u003eThis standard bore piston kit from Namura measures 94.96mm (size B) and is designed to fit Yamaha WR450F models from 2003 to 2015, providing a direct replacement for worn pistons.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura standard bore piston kit delivers a reliable replacement for Yamaha WR450F engines from 2003 to 2015. With a 94.96mm bore diameter, this size B piston restores compression and performance. It is an excellent choice for off-road riders and mechanics performing top-end rebuilds.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCast from high-silicon aluminum alloy for thermal stability\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves for optimal seal\u003c\/li\u003e\n\u003cli\u003eIncludes piston rings, wrist pin, and circlips\u003c\/li\u003e\n\u003cli\u003eWeight-matched for balanced engine operation\u003c\/li\u003e\n\u003cli\u003eDesigned to match stock bore specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha WR450F (2003-2015)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end engine rebuilds on Yamaha WR450F dirt bikes\u003c\/li\u003e\n\u003cli\u003eReplacing worn or scored pistons to restore compression\u003c\/li\u003e\n\u003cli\u003eMaintenance for off-road racing and trail riding\u003c\/li\u003e\n\u003cli\u003eGeneral engine overhaul for Yamaha four-stroke singles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNamura\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e94.96mm (Size B)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha WR450F (2003-2015)\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 the piston pre-assembled with rings? \u003cstrong\u003eA:\u003c\/strong\u003e The kit includes the piston, rings, wrist pin, and circlips, but rings must be installed following the manufacturer's instructions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this work with a modified WR450F cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e It is intended for standard bore cylinders; aftermarket cylinders may require oversized pistons.\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":44949792456790,"sku":"SZ1F15038","price":263.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_2e5c10f2-ad61-4e73-9809-5c9fa512ac9d.jpg?v=1781399228","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-piston-kit-size-b-94-96mm-for-yamaha-wr450f-2003-2015-95mm","provider":"Solid Spare","version":"1.0","type":"link"}