I would say a power brake booster or a brake booster would be the same.
booster?
booster shuster as in Wayne and Shuster Wooster as in Wooster and Jeeves and when you assist her booster be careful not to goose her. booster booster
The Brake Booster is mounted on the firewall and the master cylinder is mounted on the booster. Look at the booster and you will see a very large vacuum line coming from the booster.
Tagalog translation of BOOSTER: nagpalakas
Boys' Athletic Booster Club = Athletic Booster Club for boys (plural) Boy's Athletic Booster Club = Athletic Booster Club for a boy (singular)
a booster to perfent kenndel cough
Booster Records was created in 2010.
Jasper Booster was created in 1963.
Dragon Booster was created in 2005.
Booster Gold was created in 1986.
In some booster packs.