{"product_id":"ski-doo-alpine-399-434-front-track-drive-sprocket-for-ski-doo-1970-1973","title":"Ski-Doo Alpine 399 434 Front Track Drive Sprocket for Ski-Doo 1970-1973","description":"\u003ch2\u003eFront Track Drive Sprocket for Ski-Doo Alpine 399\/434\u003c\/h2\u003e\u003cp\u003eThis front track drive sprocket is a direct-fit replacement for Ski-Doo Alpine 399 and 434 snowmobiles built between 1970 and 1973, designed to transmit engine power from the drive shaft to the track.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis front track drive sprocket is made for Ski-Doo Alpine 399 and 434 models from 1970 through 1973 and connects the front drive shaft to the track. A worn sprocket on your Alpine 399 or 434 can cause track slippage, vibration, and lost traction, so replacing it restores dependable power transfer. It suits riders and mechanics keeping these vintage Ski-Doo Alpine machines running.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDirect-fit replacement for the original front track drive sprocket on Ski-Doo Alpine 399 and 434 models\u003c\/li\u003e\n\u003cli\u003eTooth geometry shaped to engage the track drive lugs properly\u003c\/li\u003e\n\u003cli\u003eMounts to the front drive shaft in the factory location\u003c\/li\u003e\n\u003cli\u003eBuilt to handle the torque loads of the Alpine 399 and 434 engines\u003c\/li\u003e\n\u003cli\u003eRestores positive track engagement for consistent drive\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Ski-Doo Alpine 399 (1970 to 1973)\u003c\/li\u003e\n\u003cli\u003efor Ski-Doo Alpine 434 (1970 to 1973)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReplacing a worn or damaged front drive sprocket during track service\u003c\/li\u003e\n\u003cli\u003eRestoring track drive on vintage Ski-Doo Alpine 399 and 434 snowmobiles\u003c\/li\u003e\n\u003cli\u003eDriveline maintenance on 1970 to 1973 Alpine models\u003c\/li\u003e\n\u003cli\u003eTrack and suspension rebuilds on older Alpine machines\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 Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFront Track Drive Sprocket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePosition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFront drive shaft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Brand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Ski-Doo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAlpine 399, Alpine 434\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Years\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1970-1973\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 front track drive sprocket needs replacing? \u003cstrong\u003eA:\u003c\/strong\u003e Signs include visible tooth wear, cracking, track slippage under load, or a skipping feel while riding. Checking the sprocket whenever the track is serviced helps catch these problems early.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this sprocket fit both the Alpine 399 and Alpine 434? \u003cstrong\u003eA:\u003c\/strong\u003e It is intended for Alpine 399 and 434 models built between 1970 and 1973, but drive shaft and track configurations can vary by serial number. Confirm your machine's year and driveline setup before ordering.\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":51146395025494,"sku":"OO1C26555","price":61.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_130a7e26-766f-4fff-ac2e-6b57194dde8c.jpg?v=1794502180","url":"https:\/\/www.solidspare.com\/products\/ski-doo-alpine-399-434-front-track-drive-sprocket-for-ski-doo-1970-1973","provider":"Solid Spare","version":"1.0","type":"link"}