{"product_id":"wossner-8094d050-piston-kit-polaris-trail-blazer-trail-boss-scrambler-250-0-50mm-oversize","title":"Wossner 8094D050 Piston Kit - Polaris Trail Blazer Trail Boss Scrambler 250 +0.50mm Oversize","description":"\u003ch3\u003eWossner 8094D050 Standard Series Forged 2-Stroke Piston Kit - +0.50mm Oversize\u003c\/h3\u003e\n\n\u003cp\u003eGive your classic Polaris ATV a second life with the Wossner 8094D050 Piston Kit. Specifically designed for the air-cooled and liquid-cooled Polaris 250cc 2-stroke engines found in the Trail Blazer, Trail Boss, and Scrambler series, this +0.50mm oversize forged kit is the professional solution for cylinders that require boring to clear up wear or damage. At Moto-House MX, we know these ATVs are legendary for their longevity; Wossner’s aerospace-grade forging provides a massive durability upgrade over the original equipment, ensuring your machine stays on the trail for years to come.\u003c\/p\u003e\n\n\u003cp\u003eThe 8094D050 features a robust dual-ring configuration, which is essential for utility and recreational ATVs. This design provides superior heat dissipation and a long-lasting compression seal, helping your engine stay cool and powerful during extended rides. To ensure smooth operation and reduced engine noise, Wossner applies a permanent molybdenum disulphide skirt coating that minimizes friction and piston rock. Precision-machined for a 72.50mm finished bore, this 72.43mm piston kit restores your Polaris to peak mechanical performance.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: Wossner 8094D050 Piston Kit\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cb\u003e+0.50mm Oversize (72.43mm):\u003c\/b\u003e The perfect choice for cylinders that need to be bored out to remove scratches or taper, resulting in a fresh 72.50mm bore.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eDual Ring Configuration:\u003c\/b\u003e Offers enhanced cooling and a reliable compression seal, ideal for the heavy-duty demands of an ATV engine.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eAerospace-Grade Forging:\u003c\/b\u003e Engineered to be significantly stronger and more heat-resistant than traditional cast pistons.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eLow-Friction Skirt Coating:\u003c\/b\u003e Permanent skirt treatment reduces internal drag and protects the cylinder wall, ensuring a quieter engine and smoother break-in.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eOptimized Machining:\u003c\/b\u003e Precisely balanced to reduce reciprocating weight while maintaining maximum strength in the crown and skirt.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eComplete Kit:\u003c\/b\u003e Includes the high-performance forged oversize piston, rings, wrist pin, and circlips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e When moving to an oversize piston like the +0.50mm, it is critical that your cylinder is precision-bored and honed by a qualified machine shop to exactly 72.50mm. This ensures the correct piston-to-wall clearance for a forged assembly. For a professional-grade rebuild, always install with a fresh top-end gasket kit and use high-quality 2-stroke injector or premix oil to protect your new forged piston during the initial heat cycles.\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\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003e1990-2005\u003c\/td\u003e\n\u003ctd\u003ePolaris\u003c\/td\u003e\n\u003ctd\u003eTrail Blazer 250 \/ ES \/ Freedom\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e1985-1999\u003c\/td\u003e\n\u003ctd\u003ePolaris\u003c\/td\u003e\n\u003ctd\u003eTrail Boss 250 \/ 2x4 \/ 4x4 \/ ES \/ R\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e1985-1986\u003c\/td\u003e\n\u003ctd\u003ePolaris\u003c\/td\u003e\n\u003ctd\u003eScrambler 250 \/ 250R ES\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: Why do I need an oversize piston?\u003c\/b\u003e\u003cbr\u003e\nA: Over time, 2-stroke cylinders can become oval-shaped or scratched. Boring the cylinder to a +0.50mm oversize and installing this kit allows you to restore a perfectly round bore and factory-spec compression without replacing the entire cylinder.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eQ: Is a forged piston better for my older Polaris?\u003c\/b\u003e\u003cbr\u003e\nA: Yes. Forged pistons are much more resilient to the heat and stress of air-cooled engines. They offer a higher level of safety against \"4-corner seizures\" and are generally more durable than the original cast pistons.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eQ: Does this kit include the wrist pin bearing?\u003c\/b\u003e\u003cbr\u003e\nA: This kit includes the forged piston, rings, wrist pin, and circlips. The small-end needle bearing is sold separately. We always recommend installing a new bearing whenever you replace the piston.\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 Essential for a leak-free seal and proper engine cooling.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003ePremium 2-Stroke Oil:\u003c\/b\u003e Ensure your new oversize forged piston is properly lubricated from the very first start.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eRestore your machine’s power and precision 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 8094D050 Piston Kit\",\n  \"image\": [],\n  \"description\": \"Premium Wossner 8094D050 Forged 2-Stroke Dual Ring Piston Kit for Polaris Trail Blazer, Trail Boss, and Scrambler 250. +0.50mm Oversize (72.43mm) for 72.50mm bore.\",\n  \"sku\": \"8094D050\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Wossner\"\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/motohousemx.com\/products\/wossner-8094d050-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":44495992914003,"sku":"8094D050","price":122.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/59791.png?v=1776229681","url":"https:\/\/motohousemx.com\/products\/wossner-8094d050-piston-kit-polaris-trail-blazer-trail-boss-scrambler-250-0-50mm-oversize","provider":"Moto-House MX","version":"1.0","type":"link"}