Cummins NT855, Rocker Arms, (GOOD USED) Cummins NT855 Diesel Engine Rocker Arm 218152 & Housing 3044787 For Sale, Housing Part # 3044787, Rocker Arm Part # 218152, Other Rocker Arm Part # 169705-06-, 169704-07-, Stock # 6381 | Tested & Inspected!