What Is it?
The 7108746 Brass Manifold Kit is a complete, pre-assembled replacement head designed for AAA C32 Series triplex plunger pumps (including models 530008, 530009, and early-style 530016). Built from heavy-duty brass, this complete kit includes factory-installed internal components such as high- and low-pressure valves, water seals, an unloader valve, a thermal relief valve (TRV), an integrated chemical injector, and mounting hardware. Replacing the entire manifold assembly resolves body cracks, internal bypass leaks, and pressure loss across Simpson, DeWalt, Delco, and OEM Solutions pressure washers.