{"product_id":"engine-rebuild-kit-020-over-12","title":"Engine Rebuild Kit .020 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\"\u003eEngine\u003c\/th\u003e\n\u003cth style=\"text-align:left;padding:4px 18px 4px 0\"\u003eHorsepower\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 90° 6R5, 2-Stroke\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e115–130HP\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e1993 \u0026amp; up; 23mm wrist pin\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, .020 Over, Port\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e4620PV\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, .020 Over, Starboard\u003c\/td\u003e\n\u003ctd style=\"padding:4px 18px 4px 0\"\u003e4620SV\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\"\u003eWrist Pin Bearing, Caged, 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\"\u003eRod Bearing, Caged\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 .020\" oversize kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe pistons are .020\" larger than standard, for a finished bore of 3.564\". 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 1993 and later Yamaha 115–130HP 90° V4 (6R5) outboards that have been bored .020\" oversize.\u003c\/p\u003e\n\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eComplete powerhead rebuild kit for Yamaha 115–130HP 90° V4, 1993 \u0026amp; up\u003c\/li\u003e\n\u003cli\u003eIncludes four ProV .020\" oversize pistons (two port, two starboard)\u003c\/li\u003e\n\u003cli\u003eIncludes 23mm wrist pin bearings, rod bearings, and main bearings\u003c\/li\u003e\n\u003cli\u003eIncludes new 90° rod bolts and powerhead gasket kit\u003c\/li\u003e\n\u003cli\u003eOne part number covers the full rebuild\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 4620K4\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, 90° V4 (6R5)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston Size:\u003c\/strong\u003e .020\" Over\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinished Bore:\u003c\/strong\u003e 3.564\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWrist Pin Size:\u003c\/strong\u003e 23mm\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 1993 and later Yamaha 115–130HP 90° V4 outboards with the 6R5 block and 23mm wrist pins.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy are there port and starboard pistons?\u003c\/strong\u003e\u003cbr\u003eThe V4 uses side-specific pistons, so the kit includes two of each. Install each piston on its matching cylinder bank.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to bore my cylinders?\u003c\/strong\u003e\u003cbr\u003eYes. The pistons are .020\" oversize, so the cylinders must be bored and honed to 3.564\".\u003c\/p\u003e","brand":"Pro Marine","offers":[{"title":"Default Title","offer_id":49234645844122,"sku":"4620K4","price":1083.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/7850\/3322\/files\/4620K4.jpg?v=1789582172","url":"https:\/\/knightmarineparts.com\/products\/engine-rebuild-kit-020-over-12","provider":"Knights Marine Parts","version":"1.0","type":"link"}