{"product_id":"hot-rods-hr00124-bottom-end-kit-yamaha-yfz450r-moto-house-mx","title":"Hot Rods Bottom End Kit with OE Crankshaft (450cc) HR00124 - Yamaha YFZ450R \/ SE 2014-2021","description":"\u003ch1\u003e\u003cstrong\u003eHot Rods Bottom End Kit with OE Crankshaft (450cc) HR00124 - Yamaha YFZ450R \/ SE 2014-2021\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003cdiv style=\"background-color:#fdecea; border:1px solid #f5c2c0; border-left:5px solid #d93025; border-radius:6px; padding:10px 14px; margin:12px 0; box-sizing:border-box; width:100%; max-width:100%; word-wrap:break-word; overflow-wrap:break-word; font-size:15px; line-height:1.5;\"\u003e\n\u003cstrong style=\"color:#b3261e;\"\u003ePlease Note:\u003c\/strong\u003e \u003cspan style=\"color:#5f1a15;\"\u003eKit includes crankshaft, connecting rods, gasket set, oil seal kit, main bearing, and seal kit.\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\n\u003cp\u003eRevitalize the bottom end of your ATV with the \u003cstrong\u003eHot Rods HR00124 Bottom End Kit\u003c\/strong\u003e, engineered as a direct OE replacement for superior reliability and performance. Built for high-performance 4-stroke off-road machines, this comprehensive package restores factory compression and dependable operation on the trail or track.\u003c\/p\u003e\n\n\u003cp\u003eManufactured from robust 4140 steel, the factory-assembled crankshaft features durable connecting rods and is built to meet or surpass strict OEM specifications. Backed by precision engineering and complete internal components including main bearings and a full gasket set, it delivers unmatched durability and a seamless installation for your quad engine rebuild.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: Hot Rods Bottom End Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes everything needed for a complete bottom-end installation and engine rebuild\u003c\/li\u003e\n\u003cli\u003eEquipped with Hot Rods main bearings, seals kit, and a complete engine gasket set\u003c\/li\u003e\n\u003cli\u003eFactory assembled and trued directly to strict OEM performance specifications\u003c\/li\u003e\n\u003cli\u003eConstructed from high-strength 4140 steel for ultimate longevity\u003c\/li\u003e\n\u003cli\u003eEngineered as a ready-for-installation direct OE replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your ATV before finalizing your purchase.\u003c\/p\u003e\n\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eVehicle Brand\u003c\/th\u003e\n\u003cth\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2021\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYFZ450R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2021\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYFZ450R SE\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: What components are included in this bottom end kit?\u003c\/b\u003e\u003cbr\u003eA: This complete kit features a crankshaft, connecting rods, a complete engine gasket set, an oil seal kit, main bearings, and a seal kit.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Is this kit ready for immediate installation?\u003c\/b\u003e\u003cbr\u003eA: Yes, it comes factory assembled and trued to OEM specifications, including all necessary bearings and gaskets for a comprehensive engine rebuild.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e When installing a new crankshaft, always ensure the engine crankcases are thoroughly cleaned and free of any debris or old gasket material. Check main bearing housing bores with a dial bore gauge to verify proper tolerance before dropping the new crank in, and always pre-lubricate bearings with fresh engine oil or assembly lube upon initial assembly to prevent dry startup wear.\u003c\/p\u003e\n\n\u003ch3\u003eRecommended Pairings:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yfz450-performance-motocross-sport-quads-atv-moto-house-mx\"\u003eYamaha YFZ450 Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/engine-rebuild-kits-collection-precision-and-power-for-every-engine\"\u003eEngine Rebuild Kits\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/clutch-kits\"\u003eClutch Kits\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAbout Moto-House MX\u003c\/h3\u003e\n\u003cp\u003eAt Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their machines. We pride ourselves on great customer service, and every item ships FAST - straight to your door.\u003c\/p\u003e\n\n\u003cp\u003e\u003ci\u003e\u003cstrong\u003eMoto-House MX - Choice of Champions\u003c\/strong\u003e - Your premier powersports source with great customer service and lightning-fast shipping straight to your door.\u003c\/i\u003e\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Hot Rods Bottom End Kit with OE Crankshaft (450cc) HR00124 - Yamaha YFZ450R \/ SE 2014-2021\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Hot Rods\"\n  },\n  \"sku\": \"HR00124\",\n  \"mpn\": \"HR00124\",\n  \"description\": \"Hot Rods HR00124 Bottom End Kit with OE Crankshaft for Yamaha YFZ450R \/ SE 2014-2021. 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