SEBU8598 17 General Information Product Description Illustration 13 g02272613 Right side view of a typical C15 or C18 Industrial Engine (14) NRS cooler (15) Turbocharger (16) Oil filter base i04061067 Product Description Four stroke cycle Mechanically actuated electronically controlled fuel injection system SMCS Code: 1000; 4450; 4491 Turbocharged Engine Description The Caterpillar C15 and C18 Industrial Engine provides the following features: Engine Specifications Note: The front end of the engine is opposite the flywheel end of the engine. The left and the right sides of the engine are determined from the flywheel end. The number 1 cylinder is the front cylinder.