{"product_id":"simpson-manifold-replacement-kit-for-oem-technologies-pumps-7113804-aluminum-block-integrated-unloader-trv","title":"SIMPSON Manifold Replacement Kit for OEM Technologies Pumps 7113804 — Aluminum Block, Integrated Unloader \u0026 TRV","description":"\u003cp\u003e\u003cstrong\u003eThe SIMPSON Manifold Replacement Kit (7113804) is a complete aluminum manifold assembly that replaces the manifold on OEM Technologies axial cam pumps 510028 and 510030, including valves, unloader, thermal relief, and fittings for fast pump restoration.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your pressure washer pump is leaking, losing pressure, or the soap injection or unloader has failed, swapping in this factory-style manifold restores core functions without buying a new pump. The kit ships with preassembled valves, seals, mounting hardware, a soap hose screen, an integrated unloader, and a thermal relief valve (TRV). It uses a 3\/4-inch garden-hose low-pressure inlet and an M22 high-pressure outlet, and the block is machined from aluminum for corrosion resistance and reliable service life.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this manifold kit get my pressure washer running again?\u003c\/h3\u003e\n\n\u003cp\u003eInstalled as a direct replacement for the original manifold on specified OEM axial-cam pumps, the kit rebuilds critical fluid pathways and control components. You’ll restore pressure routing, soap injection, unloader operation, and overtemperature protection in one service step.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePreinstalled inlet\/outlet fittings: 3\/4\" garden hose inlet and M22 high-pressure outlet\u003c\/li\u003e\n  \u003cli\u003eIntegrated unloader re-establishes bypass and safe unload function\u003c\/li\u003e\n  \u003cli\u003eThermal relief valve reduces risk of heat-related damage\u003c\/li\u003e\n  \u003cli\u003eSoap hose screen and valves included to restore detergent delivery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich pump models and setups is the 7113804 manifold compatible with?\u003c\/h3\u003e\n\n\u003cp\u003eThis assembly is made to match the OEM specifications for axial-cam pumps used in many SIMPSON and OEM Technologies pressure washers. Confirm your pump model number before ordering to ensure fit and performance.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDesigned for OEM Technologies pump models: 510028 and 510030\u003c\/li\u003e\n  \u003cli\u003eDirect-fit replacement—no machining or adapter fittings normally required\u003c\/li\u003e\n  \u003cli\u003eMounting hardware included for straightforward installation\u003c\/li\u003e\n  \u003cli\u003eWorks with standard garden-hose supply and M22 high-pressure hoses\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat components and materials are included and why they matter?\u003c\/h3\u003e\n\n\u003cp\u003eThe kit arrives with all wear and control parts that typically fail first, so you replace the manifold and its working internals at once. The aluminum body balances weight, corrosion resistance, and heat dissipation for dependable service.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAluminum manifold body for durability and heat handling\u003c\/li\u003e\n  \u003cli\u003ePreinstalled valves and seals to reduce installation time and leaks\u003c\/li\u003e\n  \u003cli\u003eIntegrated soap injection port with screen to protect valves from debris\u003c\/li\u003e\n  \u003cli\u003eThermal relief and unloader included to safeguard pump under heavy use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what tools or skills are needed?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is intended to be user-serviceable for mechanically skilled homeowners or service technicians familiar with pressure washer pumps. Basic hand tools and attention to torque and sealing surfaces are required.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRequires basic hand tools: wrenches, screwdrivers, and thread sealant\u003c\/li\u003e\n  \u003cli\u003eReplaces the factory manifold using included mounting hardware\u003c\/li\u003e\n  \u003cli\u003eFollow manufacturer torque specs and inspect mating surfaces for flatness\u003c\/li\u003e\n  \u003cli\u003eIf unsure, use a qualified service technician to avoid leaks or damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The SIMPSON 7113804 manifold replacement kit is for owners and service shops maintaining pressure washers built around OEM Technologies axial cam pumps 510028 or 510030. It’s ideal for customers who want a factory-style repair solution that restores soap injection, unloader function, and thermal protection without sourcing individual parts. Choose this kit if you need a reliable, ready-to-install manifold assembly to get commercial or residential power-washing equipment back into service quickly.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this manifold a direct replacement for OEM 510028 and 510030 pumps?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The 7113804 manifold is built to replace the factory manifold on OEM Technologies 510028 and 510030 axial-cam pumps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include the unloader and thermal relief valve?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit arrives with the integrated unloader, thermal relief valve, valves, seals, soap screen, and mounting hardware.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SIMPSON","offers":[{"title":"Default Title","offer_id":56841165996372,"sku":"B09BW36DBQ","price":130.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/simpson-manifold-front-assembly_3ff4daa6-6cfa-41ef-a211-89380d9d6647.jpg?v=1787075307","url":"https:\/\/gardenluxe.co.uk\/products\/simpson-manifold-replacement-kit-for-oem-technologies-pumps-7113804-aluminum-block-integrated-unloader-trv","provider":"Gardenluxe Uk","version":"1.0","type":"link"}