{"product_id":"drag-specialties-replacement-piston-for-3-875-bore-0-010","title":"Drag Specialties Replacement Piston for 3.875\" Bore +0.010\"","description":"\u003cp\u003eUpgrade your engine's performance and reliability with the \u003cstrong\u003eDrag Specialties 3.875\" Replacement Piston\u003c\/strong\u003e. Engineered to OEM quality standards, this cast aluminum alloy piston kit provides exceptional durability and an economical solution for rebuilding your motorcycle engine.\u003c\/p\u003e\u003ch2\u003eDescription\u003c\/h2\u003e\u003cp\u003eCrafted from high-grade cast aluminum alloy, this Drag Specialties replacement piston is designed to meet or exceed OEM specifications, ensuring a precise fit and reliable operation. Certain fitments of this piston feature an advanced coating that significantly extends piston life, minimizes friction, and promotes cooler engine temperatures for sustained performance. It's the ideal choice for an OEM replacement, offering an economical yet high-performance solution for your motorcycle. Designed for straightforward installation, this piston kit is compatible with both OEM and Hastings piston rings (sold separately), providing flexibility for your build. With a standard bore size of 3.875\" and an available +0.010\" oversize, along with a 9.6:1 compression ratio and 4-3\/8\" stroke length, this piston is engineered for specific engine requirements, ensuring optimal combustion and power output. Each kit conveniently includes two pistons, along with the necessary wrist pins and clips, making it a comprehensive package for a top-end refresh or rebuild.\u003c\/p\u003e\u003ch2\u003eFeatures \u0026amp; Highlights\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM-Quality Cast Aluminum Construction:\u003c\/strong\u003e Manufactured from premium cast aluminum alloy, ensuring durability and a perfect fit that meets or exceeds original equipment specifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced Friction-Reducing Coating:\u003c\/strong\u003e Select piston fitments include a specialized coating designed to extend the piston's lifespan, significantly reduce internal friction, and facilitate cooler engine temperatures for sustained performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEconomical OEM Replacement Solution:\u003c\/strong\u003e Provides an ideal and cost-effective solution for replacing worn or damaged OEM pistons, delivering excellent performance without breaking the bank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Two-Piston Kit:\u003c\/strong\u003e Each package contains two high-quality pistons, complete with wrist pins and retaining clips, offering a comprehensive solution for a twin-cylinder engine rebuild.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Ring Compatibility:\u003c\/strong\u003e Designed to seamlessly accept both OEM and Hastings piston rings (available separately), allowing for customization based on your specific performance needs.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eProduct Type: Piston\u003c\/li\u003e\n\u003cli\u003eUnits: Kit (contains 2 pistons)\u003c\/li\u003e\n\u003cli\u003ePiston Material: Cast Aluminum Alloy\u003c\/li\u003e\n\u003cli\u003eStandard Bore Size: 3.875\"\u003c\/li\u003e\n\u003cli\u003eBore Oversize: +0.010\"\u003c\/li\u003e\n\u003cli\u003eStroke Length: 4-3\/8\"\u003c\/li\u003e\n\u003cli\u003eCompression Ratio: 9.6:1\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 21989-07+.010\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eImportant to Know\u003c\/h2\u003e\u003cul\u003e\u003cli\u003eRequires piston rings (OEM or Hastings), which are not included and must be ordered separately.\u003c\/li\u003e\u003c\/ul\u003e","brand":"Drag Specialties","offers":[{"title":"Default Title","offer_id":62383981003082,"sku":"09110023","price":128.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0016\/9546\/files\/35708d4cbfaa5bf3c385812b2acd0912_96fc057e-c7b7-4d6e-9120-8171597a781a.webp?v=1781766116","url":"https:\/\/partsdenmark.de\/products\/drag-specialties-replacement-piston-for-3-875-bore-0-010","provider":"Parts Denmark","version":"1.0","type":"link"}