EPA07/10 DD PLATFORM WORKSHOP MANUAL - ENGINE 1.1 DESCRIPTION AND OPERATION OF ROCKER COVER AND RELATED PARTS The rocker cover (2) is made of an aluminum or plastic material and uses an elastomer seal (1) which completely encloses the valve operating mechanism including the overhead camshafts, brake assemblies and the injector harness. 1. Gasket 4. Air Cleaner Bracket 2. Rocker Cover 5. Stud (Bolt) 3. Bolt Figure 1-1 Rocker Cover All information subject to change without notice. DDC-SVC-MAN-0081 2010 Copyright © 2010 DETROIT DIESEL CORPORATION 1-3