When you're working on a vehicle, you need the right automotive tools to get the job done with ease. That's why you need the OEM TOOLS 27261 5 Piece Alternator Decoupler Pulley Tool Set. This alternator kit removes and installs many alternator decoupler pulleys on the most popular vehicles. The OEM pulley puller and installer set works on both the overriding alternator decoupler pulley (OAD) and the one-way alternator clutch (OWC) pulley. The tools in this alternator decoupler pulley remover and installer kit may be used whether the alternator is on or off the vehicle. Our alternator clutch pulley removal tool kit is made from tough materials and is capable of handling pulleys that require a considerable amount of force for removal. The clutch removal and installer tool set comes in a sturdy storage case for safe keeping and easy portability. For universal use, grab this alternator decoupler kit. ALTERNATOR DECOUPLER TOOL SET SPECIFICATIONS: OAD and One-Way Clutch Removal Tool Set Includes Two Pulley Sockets (H22 x 33T and H17 x H19 x 30L) and Three Shaft Bits (H10 x FM H10, T50 x H10 x 75L and M10 x H10 x 75L).