{"product_id":"wiseco-black-edition-piston-kit-tc-103-cid-9-1-010-k2789","title":"Wiseco Black Edition Piston Kit - TC 103 CID 9:1 +.010 — Harley-Davidson Road King, Electra Glide Ultra Classic, Softail Heritage Classic (1999-2017)","description":"\u003cp\u003eWiseco Black Edition piston kit for Twin Cam 103 CID engines at 9:1 compression, featuring Armor X and ArmorGlide coatings for durability and reduced friction. This kit includes premium compression and oil-control rings engineered to work with OEM and Screamin' Eagle cylinder heads.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePremium compression ring for ultimate ring seal\u003c\/li\u003e\n  \u003cli\u003eNapier second ring with taper face and underhook for improved oil control\u003c\/li\u003e\n  \u003cli\u003e3mm oil ring design with higher tension\u003c\/li\u003e\n  \u003cli\u003eArmor X piston coating reduces wear\u003c\/li\u003e\n  \u003cli\u003eArmorGlide skirt coating reduces friction and improves scuff resistance\u003c\/li\u003e\n  \u003cli\u003eCompatible with OEM and Screamin' Eagle heads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Wiseco\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e K2789\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngine Displacement:\u003c\/strong\u003e Twin Cam 103 CID\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompression Ratio:\u003c\/strong\u003e 9:1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOversize:\u003c\/strong\u003e +.010\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.4 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits V-twin motorcycles with Twin Cam 103 CID engines running OEM or Screamin' Eagle cylinder heads.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill this piston kit work with stock Harley heads?\u003c\/h3\u003e\n\u003cp\u003eYes — this kit is compatible with OEM Harley-Davidson and Screamin' Eagle heads for Twin Cam 103 engines.\u003c\/p\u003e\n\u003ch3\u003eWhat compression ratio does this provide?\u003c\/h3\u003e\n\u003cp\u003e9:1 compression ratio. Verify your cylinder head choice to ensure proper squish clearance and detonation margin.\u003c\/p\u003e\n\u003ch3\u003eIs the +.010 oversize a standard bore size?\u003c\/h3\u003e\n\u003cp\u003eYes — the +.010 overbore is a common first-stage bore size for rebuilds. Confirm your cylinder bore before ordering to ensure proper fit.\u003c\/p\u003e\n\u003ch3\u003eWhat's included in the kit?\u003c\/h3\u003e\n\u003cp\u003eThe Wiseco Black Edition piston with premium compression ring, Napier second ring, and 3mm oil ring — everything needed for one cylinder.\u003c\/p\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":53035857772655,"sku":"K2789","price":1957000.0,"currency_code":"COP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/5ab8-5fbbf1ea22255.jpg?v=1777529783","url":"https:\/\/vtwinbikers.com\/en-co\/products\/wiseco-black-edition-piston-kit-tc-103-cid-9-1-010-k2789","provider":"Vtwinbikers","version":"1.0","type":"link"}