a fluid end assembly comprising a fluid end housing with multiple discharge manifold ports . embodiments of the disclosure provide a fluid end assembly that overcomes problems associated with prior art single port discharge manifold designs that result in non - symmetrical flow of discharged fluids through the fluid end discharge valves , resulting in premature failure of said valves . the multiple port manifolds of the present disclosure overcome problems associated with non - symmetrical flow of discharged fluids through a fluid end discharge valve , thereby improving valve life and performance .