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Interpump WW961 "44 Series" Bare Pump 3000psi 4gpm Fits 1" Gas Engine Shaft

General Pump - Interpump 44 series WW961C triplex pressure wash pump. Replacement pump fits most 9 to 15hp gas engines with 1" shaft.

3000 PSI Maximum Rated Pressure

  • 4.0 GPM @ 3400 RPM
  • 1" hollow shaft
  • Flange for gas engine: 9 to 15hp
  • Inlet: 1/2" FPT (requires pump inlet for garden hose - sold separately)
  • Outlet: 3/8" FPT (3/8" MPT with unloader)

Built in unloader included, otherwise sold separately.

Do not install pump without unloader or pressure regulator.

Professional installation is recommended.