This document specifies the dimensional requirements necessary for the mounting and interchangeability of a type of fuel injector used in diesel engines. Field of Application This document applies to a clamp-mounted fuel injector of an integral nozzle and nozzle holder design with a 9.5 mm (nominal) holder shank diameter and a 5.5 mm (nominal) nozzle body tip diameter and deals with the interface between the injector and the engine. The internal construction of the injector remains optional with the manufacturer.