mid 2018 i ordered the parts kit to rebuild model 3740000 hydrovac brake booster
http://www.remaninc.com/parts"repair kit less big leather $115.00/big leather if needed $45.00"
i had to email them for the quote
i'm pretty sure that price included shipping
disclaimer - i haven't used the kit yet, it looks like many tiny parts and gaskets so that's a good sign
-s
