VACUUM PUMPS The nature of a vacuum pump is to remove air, blow-by gasses and other contaminants from the crankcase of an engine. Crankcase vacuum will increase horsepower by allowing the use of low-tension compression and oil control rings. In which the use of reduces frictional horsepower losses, blow-by, intake charge contamination and aids in detonation prevention. Moroso’s "purpose built" racing pumps offer all these advantages and more. Whether you have a normally aspirated Small Block or a nitrous equipped Pro-Mod, one of Moroso’s vacuum pump offerings with all the needed accessories has you covered. These pumps will suit nearly any engine combination and requirement.
VACUUM PUMPS & ACCESSORIES
ORIGINAL DESIGN 3-VANE VACUUM PUMP • Versatile Billet aluminum design • Engineered vane material for improved efficiency and wear • Completely rebuildable in 15 minutes • Mounting bracket not included • 4.150" O.D. body, 5.050" from back of pump to pulley mounting flange PART # 22640
DESCRIPTION Original Design 3-Vane Vacuum Pump, -12AN Fittings
No. 22640
ENHANCED DESIGN 3-VANE VACUUM PUMP We’ve taken our popular 3-Vane Vacuum Pump and added tricks that we learned when designing our "Enhanced Design" 4 Vane Vacuum Pump and through continual development of our Vacuum Pump line. The end result is: • The "Enhanced Design" features allow the pump to pull more vacuum than the "Original" style 3-Vane pump • Achieves greater vacuum sooner • 3-Vane Design weighs less than "original" style pumps • Virtually maintenance free • Designed with maintenance-free precision sealed roller bearings • Includes -12AN Fittings • Mounting bracket not included • 4.375" O.D. body, 5.050" from back of pump to pulley mounting flange PART # 22840
DESCRIPTION Enhanced Design 3-Vane Vacuum Pump, -12AN Fittings, Hard Anodized Finish
PART # 63903
AVAILABLE OPTIONS Vacuum Pump Idler Pulley Kit
No. 22840
Mounting Brackets on pgs. 166-170
ORIGINAL DESIGN 4-VANE VACUUM PUMP • Versatile Billet aluminum design, well suited for wet or dry sump applications • Engineered vane material for improved efficiency and wear • Completely rebuildable in 15 minutes • Mounting bracket not included • 4.150" O.D. body, 5.900" from back of pump to pulley mounting flange PART # 22641
DESCRIPTION Original Design 4-Vane Vacuum Pump, -12AN Fittings
No. 22641
REPLACEMENT PARTS FOR MOROSO VACUUM PUMPS PART # 97641 22626 22645 22646 97180 97181 97642 97644
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REPLACEMENT PARTS Replacement Fittings, -12AN Replacement Fittings, -16AN Vacuum Pump Rebuild Kit, Includes Bearing, Seals & Vanes For No. 22640 Vacuum Pump Rebuild Kit, Includes Bearing, Seals & Vanes For No. 22641 Rebuild Kit, Excluding Vanes, Includes Shaft & Hub, For Nos. 22640, 22641 Rebuild Kit, Excluding Vanes, Includes Shaft & Hub, For Nos.22642, 22644, 22840, 22842 Vacuum Pump, Vane Kit, For Nos. 22642, 22644, 22840, 22842 Vacuum Pump, Vane Kit, For No. 22643
Phone: 203.453.6571 • Fax: 203.453.6906 • Tech Support: 203.458.0542 • 203.458.0546