{"product_id":"4689m07350-wiseco-020-piston-kit-73-50-mm-10-5-1-for-yamaha-ttr250-1999-2006","title":"4689M07350 Wiseco .020 Piston Kit 73.50 mm 10.5:1 for Yamaha TTR250 1999-2006","description":"\u003ch2\u003eWiseco .020 Piston Kit for Yamaha TTR250\u003c\/h2\u003e\u003cp\u003eThis Wiseco piston kit for Yamaha TTR250 brings a .020 inch overbore, 73.50 mm bore size, and 10.5:1 compression ratio, and it is a direct cross-reference to OEM part 4689M07350.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Wiseco piston kit for Yamaha TTR250 is a forged piston assembly made for top-end rebuilds on 1999 through 2006 models. The .020 overbore of 73.50 mm restores cylinder sealing and compression for riders who need a reliable replacement after wear or a bore job. It is intended for home mechanics and shops rebuilding Yamaha TTR250 engines.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e.020 inch overbore at 73.50 mm for a fresh cylinder fit\u003c\/li\u003e\n\u003cli\u003e10.5:1 compression ratio suited to the TTR250 engine\u003c\/li\u003e\n\u003cli\u003eForged piston construction from Wiseco\u003c\/li\u003e\n\u003cli\u003eKit format includes piston for top-end rebuild\u003c\/li\u003e\n\u003cli\u003eCross-references OEM part 4689M07350\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha TTR250 1999\u003c\/li\u003e\n\u003cli\u003efor Yamaha TTR250 2000\u003c\/li\u003e\n\u003cli\u003efor Yamaha TTR250 2001\u003c\/li\u003e\n\u003cli\u003efor Yamaha TTR250 2002\u003c\/li\u003e\n\u003cli\u003efor Yamaha TTR250 2003\u003c\/li\u003e\n\u003cli\u003efor Yamaha TTR250 2004\u003c\/li\u003e\n\u003cli\u003efor Yamaha TTR250 2005\u003c\/li\u003e\n\u003cli\u003efor Yamaha TTR250 2006\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end rebuilds on worn TTR250 engines\u003c\/li\u003e\n\u003cli\u003eCylinder rebore jobs needing a .020 oversize piston\u003c\/li\u003e\n\u003cli\u003eRestoring compression after piston or ring wear\u003c\/li\u003e\n\u003cli\u003eTrail and off-road maintenance schedules\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4689M07350\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e73.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverbore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.020 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompression Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10.5:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWiseco\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMachine Fitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Yamaha TTR250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYears\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1999-2006\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 require a matching bore size? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, sizing to 73.50 mm overbore means the cylinder should be bored to match the .020 oversize piston before assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this a complete top-end kit? \u003cstrong\u003eA:\u003c\/strong\u003e This listing covers the Wiseco piston kit as described, so check your engine needs for rings, pin, and clips before installation.\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":51140107403350,"sku":"OO1C22560","price":439.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_04c0b3be-2711-4b5a-9236-83f0860ff314.jpg?v=1794565967","url":"https:\/\/www.solidspare.com\/products\/4689m07350-wiseco-020-piston-kit-73-50-mm-10-5-1-for-yamaha-ttr250-1999-2006","provider":"Solid Spare","version":"1.0","type":"link"}