Replace your worn base bushings so that optimum gear life and timing can be achieved. These are replacement self-lubricating bushings for magneto and distributor bases. The bushings are Oilite units that are constructed of bronze with small particles of graphite for lubrication. Please select your required outer diameter when ordering.

#4000 Bushing fits all motorcycle magnetos and our billet automotive magneto and distributor bases.

#4001 Fits most steel and aluminum automotive magneto bases whose bushing bores have not been wore out over the years.

#4011 This is an "oversize" bushing that fits steel and aluminum automotive magneto bases that have worn bushing bores.

Note: Magneto applications must be reamed to .490" after bushing installation, while distributor and MSD applications will need to be reamed to .500".