{"product_id":"mcs921138","title":"MCS Camshaft Roller Bearing. Outer, Rear – 1999–2006 Twin Cam","description":"\u003ch2\u003eMCS Camshaft Roller Bearing. Outer, Rear – 1999–2006 Twin Cam\u003c\/h2\u003e\n\u003cp\u003eOEM style 3-piece roller bearing that replaced the OEM 8990 ball bearing; used as the rear outer cam bearing from 2001-up. OEM replacement reference 8983. Note: H-D redesigned the Twin Cam rear outer cam bearing from ball (OEM 8990\/A) to a roller bearing style (OEM 8983\/MCS 921138) in 2001. This was done to help prevent failing ball bearings on; specifically; rear (=drive side) cams that are heavier loaded. This 01-up roller style bearing is a 3-piece design that is more heavy duty than a roller bearing. No other parts changed during the bearing changes. The early 99-00 style ball bearings will still fit all 99-06 models front \u0026amp; rear. Using front \u0026amp; rear ball bearings present no issues on cam driven gears.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003e99-06 Twin Cam (Excl. 2006 Dyna) (NU)\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e MCS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e MOTOR PARTS \u0026gt; CAMS BEARINGS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct code:\u003c\/strong\u003e 921138\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MCS","offers":[{"title":"Default Title","offer_id":57362079744387,"sku":"MCS921138","price":36.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1329\/4265\/files\/921138k_bd6a1dbe-b238-4567-ae31-76b9912cdba4.jpg?v=1775667224","url":"https:\/\/hogparts.com\/products\/mcs921138","provider":"Hogparts UK Ltd","version":"1.0","type":"link"}