Caterpillar C12, Rocker Arms, (GOOD USED/TESTED) Caterpillar C12 Rocker Arm 115-9406 For Sale, Part # 115-9406/00, Other Part # 115-G, 9398/02-20, 9399/02 15, 12 T 9 I G, 12T9IG, 115-9401, G19G, Stock # 5334 | Tested & Inspected!