Caterpillar C12, Rocker Arms, (GOOD USED/TESTED) Caterpillar C12 Rocker Arm 115-9406 For Sale, Part # 115-9406/00, Other Part # 115-0, 9398/02-35, 9399/02, 18 W 9 3 G, 115-9401, Stock # 5079 | Tested & Inspected!