We have complete rebuilt units with lifetime warranty to original purchaser....if you have cores to cash in they are worth money off the price.
Ours of course sell for more than someone selling a used one but as many people know these powermasters are problem prone. We never set out to be in the brake business but powermasters and brake bowls are a big part of the turbo buick business for almost all the vendors on this forum.
this power master below is a remaned unit off a car i parted out a few months ago and it worked perfect i drove the car a couple hundred miles so i am positive $400 no core needed
power masters below were taken off for various reasons some were on parts cars that were not drive some were acting up. not sure what your looking for?
Your price is fair for someone to buy and use I am looking at it for a core.
I get them rebuilt by Cardone and they put a lifetime warranty behind it to original buyer. Most now have the new Cardone brake bowl on them that has been virtually billet proof as far as any failures go...
Now if someone could just master the power antenna issues.