{"product_id":"harddrive-regulator-black-xl-1978-1981-oem-74504-78-820-60148","title":"Harddrive Regulator - Black XL `1978-1981 OEM 74504-78 — Harley-Davidson Sportster 1000, 1000 Roadster (1978-1981)","description":"\u003cp\u003eHarddrive regulator in black for 1978-1981 XL Sportster, meeting or exceeding OEM specifications. Uses high-power SCR technology and sealed encapsulation to run cooler and handle heat stress more effectively than stock units.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eMeets or exceeds OEM specifications\u003c\/li\u003e\n  \u003cli\u003eHigh-power SCR (Silicon Controlled Rectifier) design\u003c\/li\u003e\n  \u003cli\u003eSealed, high-temperature encapsulation\u003c\/li\u003e\n  \u003cli\u003eSurface-mount circuit board for efficient heat dissipation\u003c\/li\u003e\n  \u003cli\u003eOEM-grade wiring harness\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 H0478\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 191361170263\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.9342 lbs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e China (Mainland)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits 1978-1981 Harley-Davidson Sportster XL models using OEM regulator mount.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWill this fit my 1982 or newer Sportster?\u003c\/h3\u003e\n\u003cp\u003eNo — this part is specific to 1978-1981 XL Sportster. Newer models use different charging systems.\u003c\/p\u003e\n\u003ch3\u003eWhat's the advantage over the stock regulator?\u003c\/h3\u003e\n\u003cp\u003eHarddrive's SCR design and sealed encapsulation allow cooler operation and better heat handling than original equipment.\u003c\/p\u003e\n\u003ch3\u003eIs this a direct bolt-in replacement?\u003c\/h3\u003e\n\u003cp\u003eYes — uses the same OEM wiring harness and mount points as the original 1978-1981 regulator.\u003c\/p\u003e\n\u003ch3\u003eWill this improve my charging performance?\u003c\/h3\u003e\n\u003cp\u003eIt meets or exceeds OEM output specs, ensuring reliable charging without the heat buildup of aged stock units.\u003c\/p\u003e","brand":"Harddrive","offers":[{"title":"Default Title","offer_id":53035444600943,"sku":"820-60148","price":80.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/0ca3-59de421bde2ad.jpg?v=1777528613","url":"https:\/\/vtwinbikers.com\/products\/harddrive-regulator-black-xl-1978-1981-oem-74504-78-820-60148","provider":"Vtwinbikers","version":"1.0","type":"link"}