Granatelli 12‑volt rotary vein vacuum brake booster lift pump, sold bare, provides an electric vacuum source for vehicles that need auxiliary vacuum for brake boosters. The compact rotary vein design supplies vacuum without mechanical engine vacuum, making it useful for boosted or vacuum‑scarce applications; this bare unit is ready for installation where an electric lift pump is required to maintain brake assist.
Granatelli 12-Volt Vacuum Rotary Vein Brake Booster Lift Pump - Bare