85-91 FX Model, 91 Dyna, 84-91 Softail, 85-91 Touring
Ultima’s main focus on the development of the billet oil pumps was consistency. Ultima pumps are checked on a Coordinate Measuring Machine, and flow tested on a test stand to insure the oil pumps are consistent from one pump to the next, and the motor is getting adequate oil. The High Ooutput pump has a great potential for pressure and volume. Unlike stock oil pumps which won’t start feeding the bottom end oil until 2000+ RPM, tests show the High Output pump will feed the bottom end at idle speeds, and keep a consistent flow throughout the R.P.M range to keep from floating bottom end bearings. Bottom line, you are getting a precise pump that you can be confident in. Check fitting for Baggers due to master cylinder.