4-Vane Vacuum Pump - Enhanced Design

The 4-Vane Vacuum Pump – Enhanced Design from Moroso is purpose-built for serious engine builders and performance enthusiasts who demand reliable vacuum generation in high-output applications. This pump is essential for vehicles running modified or naturally aspirated engines where factory vacuum sources are inadequate or unavailable, particularly in custom engine swaps and race builds.

Moroso's enhanced vane design addresses the critical need for consistent vacuum pressure to operate brake boosters, emission systems, and vacuum-dependent accessories without relying on engine intake manifold vacuum alone. The 4-vane rotary vane configuration delivers steady, reliable vacuum flow while maintaining compact dimensions of 7.6 x 7.6 x 8.25 inches and a manageable weight of 5.96 lbs—critical for engine bay packaging in tight installations.

Mechanics and engine builders installing custom crate engines or turbocharged platforms will find this pump indispensable. Its design minimizes noise and vibration compared to traditional rotary vane pumps, making it ideal for street-driven vehicles where noise considerations matter alongside performance. The enhanced vane geometry ensures efficient displacement across a wide RPM range, from idle stability to high-RPM operation.