{"product_id":"wossner-k8978da-3-piston-kit-2016-2025-yamaha-yxz1000r-4-stroke-forged","title":"Wossner K8978DA-3 Piston Kit - 2016-2025 Yamaha YXZ1000R 4-Stroke Forged","description":"\u003ch3\u003eWossner K8978DA-3 Premium Forged 4-Stroke Piston Kit\u003c\/h3\u003e\n\n\u003cp\u003eReinforce your Yamaha YXZ1000R for ultimate reliability and power with the Wossner K8978DA-3 Piston Kit. Specifically engineered for the 2016-2025 Yamaha YXZ1000R, this forged kit is designed to provide the structural integrity required for high-performance UTV applications. At Moto-House MX, we know that the YXZ's triple-cylinder engine demands precision-engineered components to handle aggressive off-road driving and high sustained RPMs.\u003c\/p\u003e\n\n\u003cp\u003eForged from high-silicon aerospace-grade aluminum alloy, these pistons feature Wossner’s advanced engineering, including enhanced piston pin oiling slots, radial boss machining, and annular grooves to ensure superior wrist pin lubrication. With a 9.5:1 compression ratio, this kit is an excellent choice for riders looking for a durable setup that is well-suited for forced induction or turbo applications where lower compression is required to manage cylinder pressures safely. The skirt coating reduces internal friction for a quieter engine and a more efficient break-in period.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: Wossner K8978DA-3 Piston Kit\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cb\u003eStandard Size A (79.95mm Piston):\u003c\/b\u003e Precision-engineered for the standard 80.00mm bore, maintaining tight tolerances for a quieter running engine.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eAerospace Forged Alloy:\u003c\/b\u003e High-strength aluminum construction built to withstand the rigors of high-performance UTV racing.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003e9.5:1 Compression Ratio:\u003c\/b\u003e Ideal for turbo or forced induction builds, providing a safer margin for high-boost applications.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eAdvanced Lubrication:\u003c\/b\u003e Radial boss machining and enhanced oiling slots provide critical lubrication to the wrist pin.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eSkirt Coating \u0026amp; Ring Land Treatment:\u003c\/b\u003e Reduces friction and improves ring seal for better oil control and longevity.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eComplete Assembly:\u003c\/b\u003e Kit includes the forged piston, high-performance rings, wrist pin, and pin locks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e The Yamaha YXZ1000R is a high-revving 3-cylinder machine. For a complete and balanced engine refresh, it is highly recommended to replace all three pistons at once. Because this is a 9.5:1 compression piston, it is a favorite for those adding a turbocharger, as it allows for more boost pressure compared to the high-compression factory pistons.\u003c\/p\u003e\n\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" style=\"width: 100%; border-collapse: collapse;\"\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth\u003eYear Range\u003c\/th\u003e\n            \u003cth\u003eVehicle Brand\u003c\/th\u003e\n            \u003cth\u003eVehicle Model \u0026amp; Type\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003e2016-2025\u003c\/td\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003eYXZ1000R \/ SS \/ SE (UTV)\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: Is this kit for one piston or all three?\u003c\/b\u003e\u003cbr\u003e\nA: This part number represents one (1) piston kit. For a complete YXZ1000R engine rebuild, you will need to purchase three (3) kits.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eQ: Why would I choose 9.5:1 compression over 13.0:1?\u003c\/b\u003e\u003cbr\u003e\nA: The 9.5:1 ratio is lower than stock, which is specifically designed for engines running turbochargers or superchargers. It helps prevent detonation under high boost levels.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eQ: Does this include the piston rings?\u003c\/b\u003e\u003cbr\u003e\nA: Yes, every Wossner kit comes complete with the forged piston, a high-quality ring set, wrist pin, and circlocks.\u003c\/p\u003e\n\n\u003ch3\u003eRecommended Pairings\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cb\u003eComplete Top End Gasket Set:\u003c\/b\u003e Ensure a leak-free seal for your YXZ triple-cylinder rebuild.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eHigh-Performance Synthetic Oil:\u003c\/b\u003e Protect your new forged pistons with oil designed for high-RPM 4-stroke UTV engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eBuild your Yamaha for boost today. Buy now at Moto-House MX!\u003c\/p\u003e\n\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. Stop by our local store in Montverde, FL or enjoy lightning-fast shipping across the USA.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Wossner K8978DA-3 Piston Kit\",\n  \"image\": [],\n  \"description\": \"Premium Wossner K8978DA-3 Forged 4-Stroke Piston Kit for 2016-2025 Yamaha YXZ1000R. 9.5:1 Compression for turbo\/boost applications. 80.00mm Bore.\",\n  \"sku\": \"K8978DA-3\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Wossner\"\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/motohousemx.com\/products\/wossner-k8978da-3-piston-kit\",\n    \"priceCurrency\": \"USD\",\n    \"availability\": \"https:\/\/schema.org\/InStock\"\n  }\n}\n\u003c\/script\u003e","brand":"WOSSNER","offers":[{"title":"Default Title","offer_id":44496003203155,"sku":"K8978DA-3","price":776.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/2756534.png?v=1776230393","url":"https:\/\/motohousemx.com\/products\/wossner-k8978da-3-piston-kit-2016-2025-yamaha-yxz1000r-4-stroke-forged","provider":"Moto-House MX","version":"1.0","type":"link"}