GEARWRENCH 3919D, 3920D, 3921D, 3922D, 3923D, 3924D, 3925D, & 3926D

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Designed for the removal and installation of oxygen sensors, oil pressure sending units, and vacuum switches
Includes 3/8″ drive 7/8″ slotted socket for PVS, TVS and O2 sending units