Check the listing for details. Inner Cam Bearing Puller & Installer Tool Set for Harley Davidson Single Cam EVO. Condition: New. Listed at 128.98 USD. Set of Inner Cam Bearing Puller Installation Tools and One New Koyo (former Torrington) B-138 Bearing. Compatible with Harley Davidson 1986 to Present Single Cam EVO Evolution that use the B138 bearings. Function: this set is specifically designed for removing and installing the inner cam bearings on the newer model Single Cam EVO Harleys. The Set includes a 0.812-inch driver with internal thread. This driver threads onto the bolt and is used to install the inner cam bearing B-138. We also have new Koyo B-138 Needle Roller Bearings available in our store! This kit contains a High Strength Steel Hex Head Bolt Grade 8. This screw is at least 25 % stronger than medium-strength steel screws. Zinc yellow- chromate plated steel screws resist corrosion in wet environments.