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Maruyama’s Legendary Commercial UNIFLOW™ PISTON PUMPS ensure that fluid flows in only one direction, resulting in low pulsation and vibration.


Product Comparison
MSD41 5/8 MSD41 3/4
Cylinders 3 3
Cylinder Coating chrome chrome
Drive electric gas
Weight 11.7 lbs. 11.7 lbs.
Max Pressure 580 psi 580 psi
Flow/Suction Volume 8 gpm 8 gpm
Required Power 3.6 hp 3.6 hp (GX160 gas engine)
Commercial Warranty 5 yrs. 5 yrs.
Item No. 366538 366537
Illustrated Parts List MSD41 3/4 IPL
Owner’s Manual MSD41 5/8 Manual MSD41 3/4 Manual
Repair / Rebuild Instructions MSD41 Repair Kit MSD41 Rebuild Instructions