54417627 - 2700 rpm - Jaguar 4.2 MK10,420G,420,
Series 2 Etype and early XJ6 with Automatic transmission

The part works with centrifugal force and a mechanical shift at the designated rotor speed, shorting the brass rotor arm to ground.

This is the part number on the rotor

What is the part number the basic rotor.

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josh t