Injection Pump Gear Puller Removal Installer Tool: for Cummins Engines Dodge Ram Bosch VE P7100 VP44 4BT 6BT. With this tool, you will have no issues pulling the Injection Pump gear. Engine Barring/Rotating Tool: just insert the tool into the flywheel housing until it engages the ring gear, then attach a 1/2" square drive ratchet or breaker bar and turn.