Product Description 1. Application: Automatic Timing Pin works on Caterpillar CAT 3179, 3196, 3200, 3300, 3406, 3408, C-7, C8, C-9, C10, C11, C12, C13, C-15, C-16 TDC Valve/Injection Timing; Engine Barring Socket works on Mack E7/E-7 ETEC Engine, Caterpillar(CAT) engines 3200/3406 series C13/C15/C16/3208/3400/3406e/3508/3512/3500 EUI/MUI engines etc. 2. Function: The Automatic Engine Timing Pin is for Caterpillar engines simplifies TDC valve/injection timing by providing a spring-loaded pin. The Engine Barring Socket is used for turning over engine, makes adjusting injectors and valve lash easier. .
