{"product_id":"vertex-complete-engine-rebuild-kit-yamaha-yz250-yz250x-2003-2024","title":"Vertex Complete Engine Rebuild Kit - Yamaha YZ250 \/ YZ250X (2003-2024)","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eWhen it’s time to restore the hard-hitting power of your machine, cutting corners on an engine overhaul isn't an option. The Vertex Complete Engine Rebuild Kit delivers a premium, \"one-stop shop in a box\" solution, providing nearly every essential internal component needed for a professional, top-to-bottom mechanical restoration. This heavy-duty setup eliminates the guesswork of ordering individual pieces, ensuring total parts compatibility and saving valuable garage time.\u003c\/p\u003e\n\u003cp\u003eEngineered to meet or exceed rigorous factory standards, this kit combines legendary Vertex precision with proven Hot Rods structural components. From a heavy-duty crankshaft built to withstand demanding off-road racing to high-grade seals and standard compression pistons, Moto-House MX brings you a professional-grade package designed to revive your bike's original track performance and maintain long-term reliability. Secure this complete mechanical upgrade today!\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: Vertex Complete Engine Rebuild Kit\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cb\u003eConvenient All-In-One Box:\u003c\/b\u003e A comprehensive assembly containing nearly all required components for a seamless, professional top and bottom-end rebuild.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eVertex Premium Piston Setup:\u003c\/b\u003e Includes a standard compression Vertex piston (#22584B, 66.350mm diameter), high-performance rings, wrist pin, and clips.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eHot Rods Heavy-Duty Crankshaft:\u003c\/b\u003e Features a stock-stroke, heavy-duty crank paired with a precision-matched wrist pin bearing for smooth power delivery.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eComprehensive Bearing \u0026amp; Seal Coverage:\u003c\/b\u003e Packed with Hot Rods main bearings, a full transmission bearing kit (including output shaft collar and sprocket lock washer), counter balancer bearings, and a water pump rebuild kit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eFull Gasket Infrastructure:\u003c\/b\u003e Loaded with a complete Vertex gasket and oil seal kit covering both the top and bottom end for a leak-free seal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eDon't risk a critical engine failure on the track—verify your fitment below and refresh your machine's power plant today!\u003c\/b\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" style=\"border-collapse: collapse; width: 100%; border-color: #cccccc;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2;\"\u003e\n      \u003cth style=\"text-align: left;\"\u003eYear Range\u003c\/th\u003e\n      \u003cth style=\"text-align: left;\"\u003eVehicle Brand\u003c\/th\u003e\n      \u003cth style=\"text-align: left;\"\u003eVehicle Model\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e2003-2024\u003c\/td\u003e\n      \u003ctd\u003eYamaha\u003c\/td\u003e\n      \u003ctd\u003eYZ 250\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e2016-2024\u003c\/td\u003e\n      \u003ctd\u003eYamaha\u003c\/td\u003e\n      \u003ctd\u003eYZ 250 X\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: Does this kit cover both the top end and the bottom end of the engine?\u003c\/b\u003e\u003cbr\u003e\nA: Yes. This is a complete rebuild kit that includes the crankshaft, main bearings, and transmission bearings for the bottom end, as well as the piston kit, wrist pin bearing, and full gasket kits for the top end.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What piston size is included in this rebuild package?\u003c\/b\u003e\u003cbr\u003e\nA: The kit features a high-grade standard compression Vertex piston with a precision diameter of 66.350mm.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Are the transmission bearings included in this box?\u003c\/b\u003e\u003cbr\u003e\nA: Absolutely. It comes with a Hot Rods transmission bearing kit which also includes the output shaft collar and sprocket lock washer to ensure a complete transmission refresh.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e During assembly, ensure you generously pre-lube the new main bearings and crankshaft journals with high-quality 2-stroke oil. Take extra care when seating the transmission bearings to ensure absolute alignment before sealing the cases.\u003c\/p\u003e\n\n\u003ch3\u003eRecommended Pairings:\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/search?q=Yamaha+YZ250+Performance\"\u003eShop Yamaha YZ 250 Performance Parts \u0026amp; Accessories\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/search?q=2-Stroke+Engine+Oil\"\u003eBrowse High-Performance 2-Stroke Engine Oils\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/search?q=Vertex+Pistons\"\u003eBrowse All Vertex Engine Components\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eStop by our local store in Montverde, FL or enjoy lightning-fast shipping across the USA.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMoto-House MX – Choice of Champions\u003c\/b\u003e – is located in Clermont\/Montverde, FL. The Best Motocross\/UTV \u0026amp; ATV Shop in Central Florida.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Vertex Complete Engine Rebuild Kit Yamaha YZ 250 YZ 250 X WR101-082\",\n  \"image\": \"\",\n  \"description\": \"Complete top and bottom end engine rebuild kit for 2-stroke Yamaha YZ250 and YZ250X models. Includes Vertex piston kit, Hot Rods crankshaft, bearings, and complete gaskets.\",\n  \"sku\": \"0903-1017\",\n  \"mpn\": \"WR101-082\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Vertex\"\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"0.00\",\n    \"availability\": \"https:\/\/schema.org\/InStock\"\n  }\n}\n\u003c\/script\u003e","brand":"Vertex","offers":[{"title":"Default Title","offer_id":41227313774675,"sku":"WR101-082","price":737.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/vertex-complete-engine-rebuild-kit-wr101-082-2003-2020-yamaha-yz250-and-2016-2020-yz250x-375581.jpg?v=1735463351","url":"https:\/\/motohousemx.com\/products\/vertex-complete-engine-rebuild-kit-yamaha-yz250-yz250x-2003-2024","provider":"Moto-House MX","version":"1.0","type":"link"}