All models come with Comet Triplex ceramic plunger pump

ARIENS : 21536800

KOHLER : 12 132 02-S

Ensure you choose the correct valve for your pump

BSP-F Inlet Options: You can select between 1/2" or 3/8" BSP-F inlet sizes to match your equipment

Legacy GM4035R.3 Pump Solid Shaft 1500rpm 4.8gpm 3500psi features_rotating All models come with CometLegacy GM4035 triplex pressure wash pump. Hotsy HM4035 Landa LM4035 Karcher KM4035 Shark SM4035 Maximum Rated Pressure: 3500 PSI 4. 8 GPM @ 1500 RPM Shaft Diameter: 24mm Inlet: 1 2" FPT Outlet: 3 8" FPT Unloader sold separately. Do not install pump without unloader or pressure regulator. Professional installation is recommended.