Table of Contents Flow Diagram Flow Diagram TOC SMALL | MEDIUM | LARGE ISX11.9 CM2250 OEM fuel supply connection Fuel lift pump supply line Fuel lift pump Fuel lift…

Table of Contents General Information General Information TOC The XPI fuel system is a high-pressure common rail injection system.  The fuel system is made up…

Table of Contents General Information General Information TOC There are two identical cam follower assemblies, front assembly for cylinders 1 through 3 and rear assembly…

Table of Contents General Information General Information TOC Valves and engine brakes (if equipped) must be correctly adjusted for the engine to operate efficiently. Valve…

Table of Contents General Information General Information TOC The ISX11.9 utilizes a stemless crosshead design. The design does not require adjustment. Engines with compression brakes must…

Table of Contents General Information General Information TOC The cylinder block is an inline 6 cylinder with camshaft in block design made of grey cast…

Table of Contents General Information General Information TOC Concern has been generated at both the factory and in the field about engine failures that occur…

Table of Contents Engine Views Engine Views TOC The following illustrations show the location of the major external engine components, filters, and other service and…

Table of Contents Engine Dataplate ECM Dataplate Engine Dataplate TOC SMALL | MEDIUM | LARGE   The engine dataplate, located on top of the rocker lever cover, provides the…