Engine Diagrams R2.8 CM2220 R101B Page E-14 Section E - Engine and System Identification Engine Diagrams Engine Views Rear View 1 Overhead camshaft sprocket housing cover 2 Turbocharger exhaust outlet 3 Aftertreatment diesel oxidation catalyst outlet 4 Flywheel housing 5 Flywheel. To buy Cummins Parts and Service Manuals, Training Guides, or Tools go to our website at https://store.cummins.com