{"product_id":"oriental-power-pressure-washer-pump-head-ar42518-2800-psi-2-3-gpm-replacement-assembly","title":"Oriental Power Pressure Washer Pump Head AR42518 — 2800 PSI 2.3 GPM Replacement Assembly","description":"\u003cp\u003e\u003cstrong\u003eThe Oriental Power AR42518 pump head assembly is a complete aftermarket replacement for axial-cam pressure washer pumps rated up to 2800 PSI and 2.3 GPM, compatible with many Craftsman, Generac, B\u0026amp;S, Troy-Bilt and Honda models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your pressure washer is losing pressure, leaking at the pump head, or requires a full pump-head replacement, this assembled unit provides a ready-to-install alternative to expensive OEM parts. The kit ships fully assembled with seals, check valves, unloader and related components so you can restore performance quickly on compatible axial-cam pumps. It’s designed to fit a broad range of consumer and light-commercial machines while addressing common leakage and sealing issues.\u003c\/p\u003e\n\n\u003ch3\u003eWhat exact models and part numbers does this pump head replace?\u003c\/h3\u003e\n\u003cp\u003eThis assembly is engineered as a drop-in aftermarket replacement for several OEM numbers and models commonly found on consumer pressure washers. It covers variants used by Craftsman, Generac, B\u0026amp;S and Troy-Bilt, among others.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Craftsman 2300 PSI models and pump number 704667 (e.g., model 580.754.910)\u003c\/li\u003e\n  \u003cli\u003eCompatible with Generac 2700 PSI and many B\u0026amp;S VR2500\/2800 PSI axial-cam pumps\u003c\/li\u003e\n  \u003cli\u003eCross-references include AR42940, AR43061 and AR42518 style pump heads\u003c\/li\u003e\n  \u003cli\u003eNot compatible with SRMW and RMW series pumps specified as SRMW2.3G28, SRMW2.4G28, RMW2.5G28\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this assembly address leaks and low-pressure issues?\u003c\/h3\u003e\n\u003cp\u003eThe unit arrives fully assembled with upgraded sealing and welded joints intended to improve long-term sealing and reduce common leak points. Replacing a worn pump head with this assembly restores internal check valves, seals, and the unloader function—components that most often cause pressure loss.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes water seals and check valves to re-establish one-way flow and pressure\u003c\/li\u003e\n  \u003cli\u003eThermal relief and unloader valves included to protect against overheating and overpressure\u003c\/li\u003e\n  \u003cli\u003eAdvanced welding at critical cast joints to minimize leakage compared with some previous designs\u003c\/li\u003e\n  \u003cli\u003eComes with inlet\/outlet tube and chemical injector for immediate installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the performance limits and installation considerations?\u003c\/h3\u003e\n\u003cp\u003eDesigned for axial-cam pumps, the replacement head supports up to 2800 PSI and flows up to 2.3 GPM. Installation requires basic mechanical skills: removing the old head, transferring any compatible fittings, and ensuring correct orientation of the unloader and chemical injector.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaximum pressure: 2800 PSI; maximum flow: 2.3 GPM\u003c\/li\u003e\n  \u003cli\u003eIntended for 7.5 HP and similar consumer-grade engines driving axial-cam pumps\u003c\/li\u003e\n  \u003cli\u003eNot compatible with the SRMW and RMW series listed earlier—verify pump model before purchase\u003c\/li\u003e\n  \u003cli\u003ePackage arrives assembled with valves and tubes, reducing time and complexity of replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the box and what tools will I need?\u003c\/h3\u003e\n\u003cp\u003eThe package contains the full pump head assembly with internal components preinstalled, so you’ll avoid juggling tiny parts during the swap. Typical hand tools and a basic mechanical shop setup are sufficient for the changeover.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncluded: pump head assembly, water seals, check valves, unloader valve, chemical injector, e-z start valve, thermal relief valve, inlet\/outlet tube\u003c\/li\u003e\n  \u003cli\u003eTools recommended: socket set, wrench set, screwdrivers, thread sealant or PTFE tape, brief run-in oil or pump lubricant\u003c\/li\u003e\n  \u003cli\u003eAllow time for flushing and leak checks after installation before full-duty use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Oriental Power AR42518 pump head assembly suits homeowners, rental fleet managers, and small contractors who need a cost-effective, ready-to-install replacement for worn axial-cam pump heads on mid-range pressure washers. If your machine matches the listed compatibilities and you’re comfortable with mechanical replacement tasks, this kit restores pressure, replaces worn internals and reduces downtime compared with rebuilding individual components.\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 pump head compatible with my Craftsman 2300 PSI washer?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—this AR42518-style assembly fits many Craftsman 2300 PSI models including pump number 704667; verify your pump model before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include valves and seals or do I need extras?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The package is fully assembled and includes seals, check valves, unloader, chemical injector and inlet\/outlet tube.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Oriental Power","offers":[{"title":"Default Title","offer_id":56833918599508,"sku":"B0F3XLXNLF","price":85.43,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/oriental-power-front-pump-head.jpg?v=1787045603","url":"https:\/\/gardenluxe.co.uk\/products\/oriental-power-pressure-washer-pump-head-ar42518-2800-psi-2-3-gpm-replacement-assembly","provider":"Gardenluxe Uk","version":"1.0","type":"link"}