This rotor and shaft assembly has an extended shaft to allow a side-mounted Titan FF1600 dry sump pump with a 1" wide scavenge rotor (such as our former Part No. 167-01-Side, which is no longer available) to drive a mechanical tach from the oil pump. Pressure rotor is 5/8" wide.
Pumps not already set up for a tach drive will also need to replace the outer cover with our FF1600 Oil Pump Tach Drive Mount, Part No 166-21 (sold separately), to mount your tach drive to your pump.
Note: This shaft will not work with the current (May 2022 and later) pumps which have a 1.125" scavenge stage.