That is the kind I disected too. :-) Very popular on heavy earth moving
equipment for some reason.


the reason is because carbon brushs are prone to damage to from vibration. not
counting getting stuck in their holders by dirt and muddy water. internally,
your typical brushless alternators are also machined better and are more costly
to produce. like everything else in todays economy, the Chinese are pouring it
on the OEM manufacturers and driving prices way down. that is unless you are
talking atou the Niehoffs and Electrodynes. and they are actually small
companies , that is compared to Delco Remy and Prestolite.
and they also manufacture specialty products . so you wont find any price
reductions with those two brands. in fact that 250A12V niehoff is about a
$3000. unit! Leece-neville and powerline have a 200 amp brush alternator that
can be had for less than $700.00 though