o-ring countershaft/ rocker arm shaft - 65-86 4-sp BT 1SKU: 979949OEM replacement reference 11115 65-86 4-sp B.T. 1 used (NU): Countershaft. L83-85 XR 1000, 4 used (NU): Rocker arm shaft (right side of engine).0,84€PriceChat or E-mail for Quote