Athena O-ring Viton, cyl. head / oil pump body / crankcase

Fitment: Cylinder to head stud oil return (with stock .062" head gaskets) (4 used): 84-99 Big Twin; 86-07 XL Sportster (NU). Dowel Pin; crankcase to crankcase (2 used): 99-08 Twin Cam (NU). Oil pump body (1 used): 77-85 XL Sportster (NU). Oil pump check valve housing (1): 08-12 XR1200 (NU).