{"product_id":"wossner-8094d150-piston-kit-polaris-trail-blazer-trail-boss-scrambler-250-1-50mm-oversize","title":"Wossner 8094D150 Piston Kit - Polaris Trail Blazer Trail Boss Scrambler 250 +1.50mm Oversize","description":"\u003ch3\u003eWossner 8094D150 Standard Series Forged 2-Stroke Piston Kit - +1.50mm Oversize\u003c\/h3\u003e\n\n\u003cp\u003eGive your Polaris ATV cylinder one more lease on life with the Wossner 8094D150 Piston Kit. Specifically engineered for the classic Polaris 250cc 2-stroke engines found in the Trail Blazer, Trail Boss, and Scrambler models, this +1.50mm oversize forged kit is the ultimate solution for heavily worn or damaged cylinders that require significant boring. At Moto-House MX, we specialize in keeping legendary machines on the trail; choosing a Wossner forged piston ensures your engine has the structural strength to handle the increased displacement and heat associated with a large oversize bore.\u003c\/p\u003e\n\n\u003cp\u003eThe 8094D150 features a durable dual-ring configuration, designed for the high-torque, utility-focused demands of Polaris ATVs. This setup provides excellent heat transfer to the cylinder walls and maintains a reliable compression seal even under heavy loads. To ensure quiet operation and a smooth-running engine, Wossner applies a permanent molybdenum disulphide skirt coating that reduces friction and prevents piston rock. Precision-machined for a 73.50mm finished bore, this 73.43mm piston kit is the professional's choice for a comprehensive Polaris 250 engine overhaul.\u003c\/p\u003e\n\n\u003ch3\u003eTop Features: Wossner 8094D150 Piston Kit\u003c\/h3\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cb\u003e+1.50mm Oversize (73.43mm):\u003c\/b\u003e Specialized oversize for cylinders requiring a 73.50mm finished bore to remove deep scoring or structural irregularities.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eDual Ring Configuration:\u003c\/b\u003e Optimizes engine cooling and provides a long-lasting compression seal, ideal for recreational and utility ATV use.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eAerospace-Grade Forging:\u003c\/b\u003e Delivers superior strength and resistance to thermal fatigue compared to standard cast pistons.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eLow-Friction Skirt Coating:\u003c\/b\u003e Permanent skirt treatment minimizes internal drag, protects the cylinder wall, and facilitates a safer break-in period.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003ePrecision Engineering:\u003c\/b\u003e Machined for lightness to improve throttle response while maintaining maximum crown and skirt wall thickness.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eComplete Kit:\u003c\/b\u003e Includes the high-performance forged +1.50mm piston, rings, wrist pin, and circlips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eExpert Pro-Tip:\u003c\/b\u003e A +1.50mm oversize is a significant jump. It is imperative that your cylinder is precision-bored and honed by a professional machine shop to exactly 73.50mm to ensure the correct piston-to-wall clearance. For a professional-grade rebuild, always install with a fresh top-end gasket kit and utilize premium 2-stroke oil to ensure your new forged assembly is properly lubricated from the first heat cycle.\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: Is it safe to bore my Polaris 250 cylinder to +1.50mm?\u003c\/b\u003e\u003cbr\u003e\nA: Yes, as long as the cylinder sleeve has enough remaining thickness. This oversize is a standard way to save an expensive cylinder that would otherwise need to be replaced due to deep damage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eQ: What are the benefits of a forged piston in an older ATV?\u003c\/b\u003e\u003cbr\u003e\nA: Forged pistons are much denser and stronger than cast pistons. They can withstand higher temperatures and mechanical stress, which is particularly beneficial in older, air-cooled engines that may run hotter than modern liquid-cooled units.\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 piston, rings, pin, and clips. The small-end needle bearing is not included. We highly recommend purchasing a new bearing and a top-end gasket set to complete your engine rebuild properly.\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 perfect seal and maintaining correct engine compression.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eHigh-Performance 2-Stroke Lubricant:\u003c\/b\u003e Provides the necessary protection for your new forged piston during high-intensity riding.\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 8094D150 Piston Kit\",\n  \"image\": [],\n  \"description\": \"Premium Wossner 8094D150 Forged 2-Stroke Dual Ring Piston Kit for Polaris Trail Blazer, Trail Boss, and Scrambler 250. +1.50mm Oversize (73.43mm) for 73.50mm bore.\",\n  \"sku\": \"8094D150\",\n  \"brand\": {\n    \"@type\": \"Brand\",\n    \"name\": \"Wossner\"\n  },\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"url\": \"https:\/\/motohousemx.com\/products\/wossner-8094d150-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":44495992782931,"sku":"8094D150","price":132.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/59796.png?v=1776229662","url":"https:\/\/motohousemx.com\/products\/wossner-8094d150-piston-kit-polaris-trail-blazer-trail-boss-scrambler-250-1-50mm-oversize","provider":"Moto-House MX","version":"1.0","type":"link"}