BDM are proud to offer a roller bearing fuel pump drive kit upgrade. This kit is a truly âfit and forgetâ solution to the high maintenance, problematic OEM fuel pump drive system. The OEM fuel pump is driven by a flat faced follower running off the cam shaft lobe. The problem with this design is that itâs simply overloaded and causes increased friction which accelerates wear. This causes cam follower, cam shaft and fuel pump failures and in some cases the damage is irreparable. But now with the roller bearing fuel pump drive kit, the worry of fuel pump follower issues are a thing of the past. Roller bearing follower & reprofiled camshaft lobe On the left is the OEM cover. On the right you can see the modification to accept roller bearing. The inside view of the roller bearing. The OEM camshaft lobe (pictured on the table) is also replaced for a newly profiled lobe. This upgrade works on K03 & K04 variant motors, early camshafts, late camshaft and schrick aftermarket camshafts. For more details please contact us.