{"product_id":"moose-offroad-09106517-race-piston-kit-yamaha-yz250f-moto-house-mx","title":"Moose Offroad High-Performance 4-Stroke Race Piston Kit 0910-6517 (77.00 mm) - Yamaha YZ250F 2019-2025","description":"\u003ch2\u003e\u003cb\u003eMoose Offroad High-Performance 4-Stroke Race Piston Kit 0910-6517 — 77.00 mm Yamaha YZ250F\u003c\/b\u003e\u003c\/h2\u003e\n\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eMoose Offroad High-Performance 4-Stroke Race Piston Kit\u003c\/strong\u003e is engineered to deliver maximum power, exceptional durability, and reduced friction for your engine. Featuring a 77.00 mm standard bore size and a high-compression 14.3:1 ratio, this kit is built for serious off-road and motocross performance.\u003c\/p\u003e\n\u003cp\u003eCrafted with a fully boxed-style forging and internal bracing, it maximizes structural strength while minimizing weight. The piston includes a moly-coated skirt and an advanced DLC (Diamond-Like Carbon) coated wrist pin to drastically reduce abrasive wear and operating temperatures under extreme conditions.\u003c\/p\u003e\n\u003ch3\u003eTop Features: Moose Offroad Race Piston Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFully boxed-style forging design delivers ultimate structural strength, weight reduction, and minimal friction.\u003c\/li\u003e\n\u003cli\u003eFull radius dome design maximizes quench while eliminating detonation-promoting hot spots.\u003c\/li\u003e\n\u003cli\u003eIncludes a DLC-coated wrist pin for superior resistance to abrasive wear and extended service life.\u003c\/li\u003e\n\u003cli\u003eComplete kit includes the piston, ring set, wrist pin, and circlips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.\u003c\/p\u003e\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\u003e2019-2025\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: What components are included in this piston kit?\u003c\/b\u003e\u003cbr\u003eA: The kit includes the forged piston, wrist pin, ring set, and circlips.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What is the compression ratio of this piston?\u003c\/b\u003e\u003cbr\u003eA: This high-performance race piston features a 14.3:1 compression ratio.\u003c\/p\u003e\n\u003ch3\u003eExpert Pro-Tip\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e Always check ring end gaps carefully in the cylinder bore before final assembly. Warm up your engine thoroughly through multiple heat cycles after a fresh top-end rebuild to allow rings to properly seat.\u003c\/p\u003e\n\u003ch3\u003eRecommended Pairings:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-4-stroke-dirt-bikes-performance-parts-accessories-moto-house-mx\"\u003eYamaha 4-Stroke Performance Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/yamaha-yz250f-yz250fx-performance-parts-and-accessories\"\u003eYamaha YZ250F \/ YZ250FX Performance Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/motohousemx.com\/collections\/mx-off-road-motorcycle-tools\"\u003eMotorcycle Tools \u0026amp; Accessories\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\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 bikes. We pride ourselves on great customer service, and every item ships FAST - straight to your door.\u003c\/p\u003e\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\u003cp\u003e \u003c\/p\u003e","brand":"MOOSE OFFROAD","offers":[{"title":"Default Title","offer_id":44174189592659,"sku":"MPX1089","price":421.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/2724543.png?v=1772930894","url":"https:\/\/motohousemx.com\/products\/moose-offroad-09106517-race-piston-kit-yamaha-yz250f-moto-house-mx","provider":"Moto-House MX","version":"1.0","type":"link"}