{"product_id":"engine-rebuild-kit-040-over-7","title":"Engine Rebuild Kit .040 Over","description":"\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;margin-bottom:20px\"\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:4px 18px 4px 0\"\u003eBrand\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:4px 18px 4px 0\"\u003eApplication\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:4px 18px 4px 0\"\u003eEngine Type\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:4px 18px 4px 0\"\u003eApplication Notes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003eYamaha\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003eV4 6R5 90° 23mm 115–130HP 1993-Up\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e2-Stroke Outboard\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003eConfirm fitment with your engine serial number\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat is Included\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;margin-bottom:20px\"\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:4px 18px 4px 0\"\u003eQty\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:4px 18px 4px 0\"\u003eIncluded Part\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:4px 18px 4px 0\"\u003ePart Number\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003eProV Piston Kit .040 Port\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e4640PV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003eProV Piston Kit .040 Starboard\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e4640SV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003eCaged Wrist Pin Bearing, 23mm\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e323\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e4\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003eCaged Rod Bearing\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e836\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e8\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003eRod Bolt, 90°\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003eRB4000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003eUpper Main Bearing\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e6038\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003eCenter Main Bearing Kit\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e7626\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003eLower Main Ball Bearing\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e208\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e1\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003ePowerhead Gasket Kit\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e2120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background:#eef3fa;border-left:6px solid #2a5db0;border-radius:6px;padding:16px 24px;margin:20px 0\"\u003e\n\u003cp\u003e\u003cstrong\u003eThis is a .040\" oversize kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe pistons are .040\" larger than standard, for a finished bore of 3.584\". The cylinders must be bored and honed to match the pistons before assembly. Have your machine shop measure the bores and confirm the oversize you need before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWhat This Kit is Used For\u003c\/h3\u003e\n\u003cp\u003eThis Pro Marine engine rebuild kit supplies the pistons, bearings, and gaskets needed to rebuild the powerhead on Yamaha V4 6R5 90° 23mm 115–130HP 1993-Up two-stroke outboards, in a .040\" oversize configuration.\u003c\/p\u003e\n\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEngine rebuild kit for Yamaha V4 6R5 90° 23mm 115–130HP 1993-Up\u003c\/li\u003e\n\u003cli\u003eIncludes 4 ProV .040\" oversize pistons (2 port, 2 starboard)\u003c\/li\u003e\n\u003cli\u003eIncludes wrist pin, rod, and main bearings plus new rod bolts\u003c\/li\u003e\n\u003cli\u003eIncludes powerhead gasket kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKit Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Part Number:\u003c\/strong\u003e 4640K4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Pro Marine (Aftermarket)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e 2-stroke, 4-cylinder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Size:\u003c\/strong\u003e .040\" Over\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinished Bore:\u003c\/strong\u003e 3.584\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot Included:\u003c\/strong\u003e Crankcase sealant and needle bearing assembly grease\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat engines does this kit fit?\u003c\/strong\u003e\u003cbr\u003eThis kit fits Yamaha V4 6R5 90° 23mm 115–130HP 1993-Up two-stroke outboards. Confirm your model and serial number before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to bore my cylinders?\u003c\/strong\u003e\u003cbr\u003eYes. The pistons are .040\" oversize, so the cylinders must be bored and honed to 3.584\". Standard and other oversize kits are also available.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy are there port and starboard pistons?\u003c\/strong\u003e\u003cbr\u003eThis engine uses side-specific pistons, so the kit includes 2 of each. Install each piston on its matching cylinder bank.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs crankcase sealant included?\u003c\/strong\u003e\u003cbr\u003eNo. Crankcase sealant and needle bearing assembly grease are sold separately.\u003c\/p\u003e","brand":"Pro Marine","offers":[{"title":"Default Title","offer_id":49234648563866,"sku":"4640K4","price":1083.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/7850\/3322\/files\/4640K4.jpg?v=1789582173","url":"https:\/\/knightmarineparts.com\/products\/engine-rebuild-kit-040-over-7","provider":"Knights Marine Parts","version":"1.0","type":"link"}