The new backpacker pump arm part number is 1389-025. Got that from a person on another forum who actually ordered it.
MellonAir has the best deal on flat-top piston/valve combo, but you'll have to wait 5 weeks. MellonAir also has the solid pump-arm pins and reinforcing rings.JMJ
if you are lucky you will see the mellonair parts before 2 months.he is so backed up the last i saw it was at least a 5 week wait from the day the order was placed.someone reported the other day 7 weeks it from order date to parts received.if you are patient its definitely they way to go
thats good to know the pumparm is backis it black?