{"product_id":"hot-cams-8400036-1-titanium-exhaust-valve-yamaha-yz250f-moto-house-mx","title":"Hot Cams Titanium Exhaust Valve 8400036-1 — Yamaha YZ250F \/ YZ250FX \/ WR250F 2014-2025","description":"\u003ch1\u003e\u003cstrong\u003eHot Cams Titanium Exhaust Valve 8400036-1 — Yamaha YZ250F YZ250FX WR250F 2014-2025\u003c\/strong\u003e\u003c\/h1\u003e\n\n\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003eEnsure your engine's reliability and peak exhaust flow with the \u003cstrong\u003eHot Cams Titanium Exhaust Valve\u003c\/strong\u003e. These \u003cstrong\u003eforged one-piece OEM replacement valves\u003c\/strong\u003e are precision-engineered to meet the rigorous demands of your Yamaha 250cc engine. Featuring a 45° seat angle, each valve is machined to exact tolerances to ensure consistent sealing and heat dissipation under high-RPM conditions.\u003c\/p\u003e\n\u003cp\u003eTo resist the extreme temperatures and stress encountered in the exhaust port, these valves are \u003cstrong\u003echromium nitride coated\u003c\/strong\u003e, significantly enhancing wear resistance and operational longevity. The valve stem tip is induction hardened to withstand high-impact actuation, while the precision-polished surface minimizes drag. These valves are fully compatible with your stock valve keepers and retainers, making them an ideal choice for a professional-grade cylinder head overhaul.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: Hot Cams Titanium Exhaust Valve\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eForged one-piece construction designed for maximum structural reliability.\u003c\/li\u003e\n  \u003cli\u003eChromium nitride coating offers superior heat and wear resistance in the exhaust port.\u003c\/li\u003e\n  \u003cli\u003eInduction hardened valve stem tip maintains precision under constant mechanical stress.\u003c\/li\u003e\n  \u003cli\u003ePrecision-machined head and seat surfaces for optimal sealing and heat transfer.\u003c\/li\u003e\n  \u003cli\u003eDirect-fit compatibility with OEM valve keepers, retainers, and springs.\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;\"\u003e2015-2025\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;\"\u003eYZ250FX\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;\"\u003e2015-2021\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;\"\u003eWR250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px; color: #555555;\"\u003e2014-2025\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;\"\u003eYZ250F\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: Why is it critical to replace exhaust valves specifically?\u003c\/strong\u003e\u003cbr\u003e\nA: Exhaust valves endure significantly higher thermal stress than intake valves because they are constantly exposed to burning exhaust gases. Replacing them during a top-end rebuild prevents \"tuliping\" or valve failure, which can cause catastrophic engine damage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I use these with aftermarket valve springs?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, these valves are compatible with most aftermarket high-performance valve springs, provided those springs are designed for the specific Yamaha valvetrain geometry.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e Always check your valve guide clearance when installing new valves. Even a perfect titanium valve will fail quickly if the valve guide is worn or \"egged out,\" as the side-to-side play prevents the valve from seating perfectly in the center of the valve seat.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRecommended Pairings:\u003c\/strong\u003e\u003cbr\u003e\no \u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz250f-yz250fx-performance-parts-and-accessories\"\u003eYamaha YZ250F \/ YZ250FX Performance Parts\u003c\/a\u003e\u003cbr\u003e\no \u003ca href=\"https:\/\/motohousemx.com\/collections\/premium-motorcycle-chemicals-brake-fluid-bike-wash-coolant-chain-lubes\"\u003eHigh-Temp Assembly Lube\u003c\/a\u003e\u003cbr\u003e\no \u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-motorcycle-tools\"\u003eCylinder Head Rebuild 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\": \"Hot Cams Titanium Exhaust Valve 8400036-1\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Hot Cams\"\n  },\n  \"sku\": \"8400036-1\",\n  \"description\": \"High-performance forged titanium exhaust valve for Yamaha YZ250F, YZ250FX, and WR250F. Chromium nitride coated for extreme durability.\"\n}\n\u003c\/script\u003e","brand":"Hot Cams","offers":[{"title":"Default Title","offer_id":39690261069907,"sku":"8400036-1","price":110.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/hot-cams-titanium-exhaust-valves-8400036-1-yamaha-yz250f-2014-2021-117251.png?v=1735343830","url":"https:\/\/motohousemx.com\/products\/hot-cams-8400036-1-titanium-exhaust-valve-yamaha-yz250f-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}