{"product_id":"21066-3703-voltage-regulator-for-kawasaki-sx-650-1987-1991","title":"21066-3703 Voltage Regulator for Kawasaki SX 650 1987-1991","description":"\u003ch2\u003eVoltage Regulator for Kawasaki SX 650\u003c\/h2\u003e\u003cp\u003eThis voltage regulator replaces OEM part 21066-3703 to keep your Kawasaki SX 650 charging system stable and your battery properly fed.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe voltage regulator for Kawasaki SX 650 manages charging output so the battery stays topped off without overcharging. Built as a direct replacement for OEM 21066-3703, this regulator keeps ignition and electrical accessories running reliably on 1987-1991 SX 650 models. It suits riders who need a dependable fix for weak spark, dim lights, or a battery that keeps draining.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement for OEM part number 21066-3703\u003c\/li\u003e\n\u003cli\u003eRegulates charging voltage to protect the battery from overcharge\u003c\/li\u003e\n\u003cli\u003eSolid-state construction for stable output across the RPM range\u003c\/li\u003e\n\u003cli\u003ePlug-in style connector matched to the SX 650 wiring harness\u003c\/li\u003e\n\u003cli\u003eSealed housing resists moisture and vibration\u003c\/li\u003e\n\u003cli\u003eCompatible with 1987-1991 Kawasaki SX 650 models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Kawasaki SX 650 1987\u003c\/li\u003e\n\u003cli\u003efor Kawasaki SX 650 1988\u003c\/li\u003e\n\u003cli\u003efor Kawasaki SX 650 1989\u003c\/li\u003e\n\u003cli\u003efor Kawasaki SX 650 1990\u003c\/li\u003e\n\u003cli\u003efor Kawasaki SX 650 1991\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplacing a failed regulator on a personal watercraft\u003c\/li\u003e\n\u003cli\u003eRestoring consistent charging on older SX 650 models\u003c\/li\u003e\n\u003cli\u003ePreventing battery drain during storage between rides\u003c\/li\u003e\n\u003cli\u003eKeeping lights and ignition strong during long runs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e21066-3703\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVoltage Regulator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKawasaki SX 650, 1987-1991\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e How do I know if my regulator needs replacing? \u003cstrong\u003eA:\u003c\/strong\u003e Common signs include a battery that will not hold a charge, dim lights, and weak spark. Testing charging output with a multimeter confirms the fault before you swap parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this a direct fit for the listed models? \u003cstrong\u003eA:\u003c\/strong\u003e It is made to replace OEM 21066-3703 on 1987-1991 Kawasaki SX 650 models. Check your machine's serial number to confirm compatibility.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":51072893976662,"sku":"OO1C17674","price":109.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_4663376a-7c47-4d7c-a984-9bc673c71c4b.jpg?v=1794479876","url":"https:\/\/www.solidspare.com\/products\/21066-3703-voltage-regulator-for-kawasaki-sx-650-1987-1991","provider":"Solid Spare","version":"1.0","type":"link"}