{"product_id":"alternator-rotor-clutch-shell-sprocket-assembly","title":"Alternator rotor \/ clutch shell \u0026 sprocket assembly","description":"OEM style replacement alternator rotor\/clutch shell with primary chain sprocket combo. Incl. ball bearing. Magnets are encapsulated in a stainless steel shell. This will help prevent magnets coming loose; which fequently happens with OEM equipment. OEM replacement reference 36791-84.  Note: Replacement clutch hub ball bearing is separately available as 556626\/36799-84.  TECH TIP: On L84-90 XL Sportster the alternator is installed on the clutch hub. This was poor design. Excessive clearance between clutch hub bearing; mainshaft ball bearing and needle bearing between the two parts of the transmission shaft allows the clutch hub to cock sideways; enough for contact between stator and clutch hub. Grinding stator and\/or clutch hub is sometimes done; but not recommended by MCS; to add clearance which reduces output. Better is installing new bearings. From 1991-on the alternator was moved and the rotor is run on the sprocket shaft. This fixed the problem.\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e L84-90 4-speed XL Sportster (NU)\u003c\/p\u003e","brand":"MCS","offers":[{"title":"Default Title","offer_id":54237734469959,"sku":"936791","price":776.88,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0987\/7812\/0519\/files\/936791k.jpg?v=1784472832","url":"https:\/\/www.chopperessentials.com\/products\/alternator-rotor-clutch-shell-sprocket-assembly","provider":"Chopper Essentials Co.","version":"1.0","type":"link"}