{"product_id":"harddrive-twin-cam-cylinders-tc103-cylinder-3-875-bore-black-w-machined-fins-820-51547","title":"Harddrive Twin Cam Cylinders - Tc103 Cylinder 3.875\" Bore Black W\/Machined Fins… — Harley-Davidson (2007-2017)","description":"\u003cp\u003eHarddrive Twin Cam cylinder with 3.875\" bore, featuring a powder-coated black finish and machined aluminum fins for a stock appearance. Aluminum construction with cast iron sleeves, sold individually and requiring finish honing and piston matching before installation.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePowder-coated black finish with machined aluminum fins\u003c\/li\u003e\n  \u003cli\u003eAluminum cylinder with cast iron sleeve\u003c\/li\u003e\n  \u003cli\u003e3.875\" bore\u003c\/li\u003e\n  \u003cli\u003eSold individually — requires finish honing and piston matching\u003c\/li\u003e\n  \u003cli\u003eSuitable for stock replacement or displacement increase\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 Harddrive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 88461\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 191361122354\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBore:\u003c\/strong\u003e 3.875\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 10 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 10.2 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 9.6 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 10.015 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Japan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Twin Cam V-twin motorcycles. Designed for Harley-Davidson and Indian Motorcycle applications.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eDo I need to hone and match these cylinders to pistons?\u003c\/h3\u003e\n\u003cp\u003eYes — cylinders are sold individually and must be finish-honed and matched to your pistons before installation. Pistons are sold separately.\u003c\/p\u003e\n\u003ch3\u003eCan I use these for a displacement increase?\u003c\/h3\u003e\n\u003cp\u003eYes — the 3.875\" bore supports both stock replacement and displacement-increase builds when matched with appropriate pistons.\u003c\/p\u003e\n\u003ch3\u003eAre these cylinders a complete set, or do I need to buy pairs?\u003c\/h3\u003e\n\u003cp\u003eEach cylinder is sold individually. You will need one cylinder per side, and pistons must be ordered separately and matched during honing.\u003c\/p\u003e\n\u003ch3\u003eWhat's the difference between these and OEM cylinders?\u003c\/h3\u003e\n\u003cp\u003eHarddrive cylinders offer a cost-effective alternative with the same aluminum-with-cast-iron-sleeve construction and OEM-style machined fin appearance.\u003c\/p\u003e","brand":"Harddrive","offers":[{"title":"Default Title","offer_id":53035825201263,"sku":"820-51547","price":319.46,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/994c-5bec7c937c1ad.jpg?v=1777529542","url":"https:\/\/vtwinbikers.com\/products\/harddrive-twin-cam-cylinders-tc103-cylinder-3-875-bore-black-w-machined-fins-820-51547","provider":"Vtwinbikers","version":"1.0","type":"link"}