DC brushes for use on BKB S.A.E & C.T.R 609 Series alternators of both single and three phase output configurations either 50/60Hz.
As commonly found fitted to Lister Start-O-Matic sets using Lister CS 8-1 engines with a 4.5KW output, Lister SR2 and Lister SL2 engines.
Lister Petter part number 064-08477.
These brushes measure 3/4" x 1/4" and are sold individually.