{"product_id":"harddrive-crankcase-breather-filter-820-51579","title":"Harddrive Crankcase Breather Filter - V-Twin","description":"\u003c!-- vt:seo-start --\u003e\n\u003cdiv class=\"vt-brand-bio\" style=\"background:#f6f6f6;border-left:4px solid #c8102e;padding:14px 18px;margin:0 0 20px;border-radius:4px;\"\u003e\n\u003ch2 style=\"margin:0 0 6px;font-size:1.05em;\"\u003eAbout Harddrive\u003c\/h2\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.6;\"\u003eHarddrive is the house performance and replacement line built for American V-twins, covering everything from engine hardware and electrical to controls, lighting and chassis parts. The range is aimed squarely at Harley-Davidson and Indian riders who want a direct-fit part without dealer pricing, and it spans decades of model years — from Evolution-era Softails to current Milwaukee-Eight baggers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"line-height:1.65;\"\u003eMaintain optimal engine health with the Harddrive Crankcase Breather Filter. This essential component is designed to prevent oil mist and contaminants from entering your intake system, while still allowing your V-twin engine to breathe properly. It's a direct replacement for existing Harddrive breather assemblies on Harley-Davidson and Indian Motorcycle engines.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eWhy riders pick this\u003c\/h3\u003e\u003cul style=\"padding-left:20px;margin:0 0 16px;\"\u003e\n\u003cli style=\"margin:3px 0;\"\u003eFilters oil mist and contaminants\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eEnsures optimal crankcase ventilation\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eDirect replacement for Harddrive 820-51578 assembly\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eCompact design for easy fitment\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003ePromotes cleaner engine operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProper crankcase ventilation is critical for the longevity and performance of your V-twin. This Harddrive filter ensures that excess crankcase pressure can escape efficiently, without introducing harmful oil mist or particulates into your engine's intake. Its compact design allows for easy integration into your existing Harddrive breather setup, providing peace of mind on every ride.\u003c\/p\u003e\u003ch3\u003eEssential Filtration for Engine Health\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDesigned to fit Harddrive breather assembly 820-51578\u003c\/li\u003e\n\u003cli\u003ePrevents oil mist ingestion into the intake\u003c\/li\u003e\n\u003cli\u003eEnsures proper crankcase ventilation\u003c\/li\u003e\n\u003cli\u003eCompact and easy to install design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSimple Maintenance for Lasting Performance\u003c\/h3\u003e\u003cp\u003eRegular inspection and replacement of your crankcase breather filter are key to maintaining your V-twin's performance. This Harddrive filter makes that maintenance simple. By keeping your engine's internal environment clean, you help protect vital components and ensure consistent power delivery. It’s a small part that plays a big role in your bike's overall health.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eSpecifications\u003c\/h3\u003e\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 14-014A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 191361166693\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 3.34 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 2.16 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 2.16 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.1763 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China (Taiwan)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"vt-faq\"\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eWhat is the primary function of this crankcase breather filter?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThis filter allows your engine to vent excess crankcase pressure safely while effectively filtering out oil mist and other contaminants, preventing them from re-entering the intake system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eHow often should I inspect and replace this filter?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eYou should inspect this filter during routine maintenance, such as oil changes. Replace it annually or more frequently if you notice it's clogged with oil residue or dirt to ensure optimal performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eWill this filter fit any Harley-Davidson or Indian Motorcycle?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThis specific filter is designed to fit V-twin engines equipped with the Harddrive 820-51578 breather assembly. Please verify your current breather setup for compatibility before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vt-confidence\" style=\"border-top:1px solid #e5e5e5;margin:24px 0 0;padding:16px 0 0;font-size:0.92em;line-height:1.6;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOrdering from Vtwinbikers\u003c\/h3\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli\u003eBrand new, sourced through authorized US distribution — never used, never grey-market.\u003c\/li\u003e\n\u003cli\u003eNot sure it fits? Use \u003cstrong\u003eShop by Bike\u003c\/strong\u003e to filter by your year and model, or email us and we will confirm before you order.\u003c\/li\u003e\n\u003cli\u003eHarley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vtwinbikers.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Engine\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/all\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Harddrive\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/harddrive\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Harddrive Crankcase Breather Filter - V-Twin\",\"item\":\"https:\/\/vtwinbikers.com\/products\/harddrive-crankcase-breather-filter-820-51579\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the primary function of this crankcase breather filter?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This filter allows your engine to vent excess crankcase pressure safely while effectively filtering out oil mist and other contaminants, preventing them from re-entering the intake system.\"}},{\"@type\":\"Question\",\"name\":\"How often should I inspect and replace this filter?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"You should inspect this filter during routine maintenance, such as oil changes. Replace it annually or more frequently if you notice it's clogged with oil residue or dirt to ensure optimal performance.\"}},{\"@type\":\"Question\",\"name\":\"Will this filter fit any Harley-Davidson or Indian Motorcycle?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This specific filter is designed to fit V-twin engines equipped with the Harddrive 820-51578 breather assembly. Please verify your current breather setup for compatibility before purchasing.\"}}]}\u003c\/script\u003e\n\u003c!-- vt:seo-end --\u003e","brand":"Harddrive","offers":[{"title":"Default Title","offer_id":53035426316399,"sku":"820-51579","price":12.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_4c542b05-a199-486f-8314-a33665ef60fa.png?v=1779561732","url":"https:\/\/vtwinbikers.com\/products\/harddrive-crankcase-breather-filter-820-51579","provider":"Vtwinbikers","version":"1.0","type":"link"}