Interpump TT2530 "51 Series" Bare Pump 2500psi 2.88gpm Fits 3/4" Gas Engine Shaft Model:TT2530BC - No Unloader At 190° F the valve

At 190° F the valve opens to allow cool water to enter the pump if the washer is left running without the trigger being pulled

Legacy Universal Unloader Valve - Trapped Pressure (Banjo Bolt-On)

Comfort technology designed trigger system actually helps the operator keep the trigger open

88 GPM @ 3400 RPM

Model 2030:

Interpump TT2530 "51 Series" Bare Pump 2500psi 2.88gpm Fits 3/4" Gas Engine Shaft Model:TT2530BC - No Unloader At 190° F the valveGeneral Pump Interpump 51 series TT 2530 triplex pressure wash pump. Replacement pump fits most 4 to 8hp gas engines with 3 4" shaft. 2500 PSI Maximum Rated Pressure 2. 88 GPM @ 3400 RPM 3 4" hollow shaft Flange for gas engine (4 to 8hp) Inlet: 3 8" FPT (1 2"FPT with unloader requires pump inlet) Outlet: 1 4" FPT (3 8" MPT with unloader) Available with built in Unloader, otherwise sold separately. Do not install pump without unloader or pressure