| 摘要 |
An injector insulating cover includes a circumferential engagement portion in an inner wall portion. The circumferential engagement portion is engaged in a circumferential direction with respective apexes of a nut portion disposed in a head portion of an injector. When the insulating cover is attached so as to cover the head portion of the injector, the insulating cover cannot relatively rotate about the axis of the injector. Thus, the insulating cover can surely hold electric wires connected to terminals of the injector, so that electric wires elongate in a desired direction, and disadvantages such as that the electric wires come in contact with peripheral components and their insulating sheaths are damaged can be prevented from being produced.
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