{"product_id":"prox-23-cbs21093-crankshaft-bearing-seal-kit-yamaha-yz80-yz85-moto-house-mx","title":"ProX Crankshaft Bearing and Seal Kit 23.CBS21093 — Yamaha YZ80 \/ YZ85 1993-2018","description":"\u003cdiv\u003e\n  \u003ch1\u003e\u003cstrong\u003eProX Crankshaft Bearing and Seal Kit 23.CBS21093 — Yamaha YZ80 \/ YZ85 1993-2018\u003c\/strong\u003e\u003c\/h1\u003e\n\n  \u003ch2\u003eProduct Description\u003c\/h2\u003e\n  \u003cp\u003eEnsure your engine's longevity and performance with the \u003cstrong\u003eProX Crankshaft Bearing and Seal Kit\u003c\/strong\u003e. Designed to meet or exceed \u003cstrong\u003eexact OEM specifications\u003c\/strong\u003e, this kit provides a cost-effective and reliable solution for your next bottom-end rebuild. Whether you are replacing worn components or performing a full engine overhaul, these high-quality bearings and seals are engineered to withstand the rigors of competitive 2-stroke motocross riding.\u003c\/p\u003e\n  \u003cp\u003eEach kit is meticulously crafted to ensure a perfect fit, providing \u003cstrong\u003emaximum performance\u003c\/strong\u003e and the durability needed to keep your Yamaha running strong. This kit is optimized for use with either original equipment (OEM) or ProX crankshafts, making it the ideal choice for mechanics and riders who demand consistency and precision in every engine component.\u003c\/p\u003e\n\n  \u003ch3\u003eTop Features: ProX Crankshaft Bearing \u0026amp; Seal Kit\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOEM Quality Standards:\u003c\/strong\u003e Manufactured to precise OEM specifications for reliable, long-lasting performance.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eComprehensive Kit:\u003c\/strong\u003e Includes all essential bearings and seals required for a standard crankshaft component replacement.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEngineered for Durability:\u003c\/strong\u003e High-grade materials designed to handle high RPMs and the stresses of 2-stroke engines.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVersatile Compatibility:\u003c\/strong\u003e Perfectly matched for use with both OEM and ProX brand crankshaft assemblies.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\u003cem\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/em\u003e\u003c\/p\u003e\n\n  \u003ch2\u003eFitment List\u003c\/h2\u003e\n  \u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; margin-top: 15px; margin-bottom: 15px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"background-color: #f7f7f7;\"\u003e\n        \u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eYear Range\u003c\/th\u003e\n        \u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Brand\u003c\/th\u003e\n        \u003cth style=\"border: 1px solid #e0e0e0; padding: 12px; text-align: left; font-weight: bold; color: #333333;\"\u003eVehicle Model \u0026amp; Sub-Model\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e1993-2001\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYamaha\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYZ80\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n        \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2002-2018\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYamaha\u003c\/td\u003e\n        \u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003eYZ85\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\n  \u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n  \u003cp\u003e\u003cstrong\u003eQ: Should I replace my crank seals when replacing bearings?\u003c\/strong\u003e\u003cbr\u003e\n  A: Absolutely. Crank seals are essential for maintaining proper crankcase pressure and preventing oil leaks; always replace them whenever you replace your crankshaft bearings.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eQ: Is this kit compatible with non-OEM crankshafts?\u003c\/strong\u003e\u003cbr\u003e\n  A: Yes, this ProX kit is specifically designed to be compatible with both OEM crankshafts and ProX replacement crankshafts.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e When installing new crank seals, apply a very light film of clean two-stroke oil or high-temp assembly lube to the seal lip. This prevents the rubber from dry-rubbing against the crankshaft surface during the first start-up, which is critical for preventing early seal failure.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\n  o    \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz85-performance-parts-and-accessories-moto-house-mx\"\u003eYamaha YZ85 Performance Parts \u0026amp; Upgrades\u003c\/a\u003e\u003cbr\u003e\n  o    \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-2-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eYamaha 2-Stroke Engine Performance Parts\u003c\/a\u003e\u003cbr\u003e\n  o    \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-motorcycle-tools\"\u003eEssential Motorcycle Shop Tools\u003c\/a\u003e\u003c\/p\u003e\n\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 bikes. Every order ships fast from our Central Florida location.\u003c\/p\u003e\n\n  \u003cp\u003e\u003cem\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – Clermont \/ Montverde, FL. Central Florida's premier powersports source with lightning-fast worldwide shipping.\u003c\/em\u003e\u003c\/p\u003e\n\n  \u003cscript type=\"application\/ld+json\"\u003e\n  {\n    \"@context\": \"https:\/\/schema.org\/\",\n    \"@type\": \"Product\",\n    \"name\": \"ProX Crankshaft Bearing and Seal Kit 23.CBS21093\",\n    \"brand\": {\n      \"@type\": \"Brand\",\n      \"name\": \"ProX\"\n    },\n    \"mpn\": \"23.CBS21093\",\n    \"description\": \"Premium crankshaft bearing and seal kit for Yamaha YZ80 and YZ85, manufactured to OEM specifications for reliable bottom-end engine rebuilds.\"\n  }\n  \u003c\/script\u003e\n\u003c\/div\u003e","brand":"ProX","offers":[{"title":"Default Title","offer_id":27841809678419,"sku":"23.CBS21093","price":27.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/pro-x-crankshaft-bearings-and-seals-yamaha-yz85-02-18-23cbs21093-357435.png?v=1735459705","url":"https:\/\/motohousemx.com\/products\/prox-23-cbs21093-crankshaft-bearing-seal-kit-yamaha-yz80-yz85-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}