HRepair Pressure Washer Pump Manifold replacement for 7108366 / 510020 / 520006 — one-piece metal kit with soap injector & thermal

HRepair 7108366 is a direct-fit pressure washer pump manifold assembly that replaces OEM 510020, 520006 and Simpson 7108366 units to restore pump water flow, soap injection, and pressure control.

This replacement manifold is built as a one-piece metal assembly designed to swap into axial cam pressure washer pumps without modification. It combines the soap injection, thermal relief, unloader and valve ports into a single, corrosion-resistant unit so you can return your washer to service quickly. The manifold is sold as a kit including valves, unloader, thermal relief valve (TRV), soap injection unit, garden-hose inlet and M22 high-pressure outlet plus mounting hardware.

How will this manifold fit my pressure washer pump?

The HRepair 7108366 is engineered to match the OEM mounting pattern and port layout of Technologies models 510020 and 520006 and Simpson 7108366 pumps. The single-piece design keeps alignment and sealing consistent to avoid leaks or rework during installation. Check your current part number and port sizes before ordering.

• Compatible with OEM numbers: 7108366, 510020, 520006
• Includes 3/4" garden-hose low-pressure inlet
• M22 high-pressure outlet for common hose fittings
• Direct-fit one-piece assembly for easier mount and seal alignment

What components are included and what do they do?

This manifold kit arrives with all functional items needed to restore standard pump operations: internal valves, a user-accessible unloader, thermal relief valve and an integrated soap injection. Those parts control pressure relief, prevent overheating damage, and let you introduce detergent without separate fittings. Everything ships with mounting hardware so you have fewer parts to source.

• Valves for sealing and directing flow under pressure
• Adjustable unloader to regulate outlet pressure
• Thermal relief valve to relieve trapped heat and pressure
• Integrated soap injector and required mounting bolts

How difficult is installation and what tools are required?

Installation is straightforward for mechanically inclined users and professional technicians alike because the manifold replaces the original one-piece unit. Basic hand tools are usually sufficient; follow torque recommendations and use new gaskets or seals when available. If you encounter worn seals or mating surfaces, replace them to ensure a long-lasting repair.

• Typical tools: socket set, wrenches, thread sealant or PTFE tape
• Recommended: replace pump seals and O-rings when accessible
• Keep torque within OEM guidelines to avoid warping the housing

How durable is the HRepair manifold and what maintenance is needed?

Made from corrosion-resistant metal, the manifold is meant to withstand typical pressure-washing environments and extended use. Routine maintenance includes checking the unloader adjustment, inspecting valves for debris, and replacing the TRV if it shows wear. Proper winterizing and water filtration will extend component life and reduce the chance of clogging.

• Constructed from high-quality metal with corrosion resistance
• Supports regular service: valve cleaning and TRV checks
• Lifetime replacement and refund policy offered by HRepair

Who is this for: The HRepair 7108366 manifold kit is ideal for owners of axial cam pressure washers using Technologies 510020/520006 or Simpson 7108366 pumps who need a fast, reliable replacement without modifying the pump housing. It suits DIY mechanics, field service technicians, rental shops and fleet maintainers who want OEM-compatible flow control, soap injection and safety relief features in one package.