{"product_id":"himore-pressure-washer-pump-replacement-2800-psi-vertical-pump-2-3-gpm-for-black-max-bm80913-bm80919","title":"Himore Pressure Washer Pump Replacement — 2800 PSI Vertical Pump, 2.3 GPM for Black Max BM80913\/BM80919","description":"\u003cp\u003e\u003cstrong\u003eThe Himore ROP Shop 2800 PSI Power Pressure Washer Water Pump is a vertical replacement pump rated to 2800 PSI and 2.3 GPM designed for Black Max BM80913 and BM80919 style units.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement pump provides the core components—chemical injector, unloader valve, thermal release valve and outlet tube—needed to restore cleaning pressure on many small-engine pressure washers. It installs as a vertical, rear-facing pump and is intended for hobbyist and light-commercial machines that require up to 2800 PSI at 2.3 gallons per minute. Before ordering, check your model specifics and engine shaft\/bolt configuration to ensure proper fit and to avoid returns.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I confirm this pump fits my pressure washer?\u003c\/h3\u003e\n\u003cp\u003eCompatibility depends on mounting pattern, shaft size and engine configuration. Compare the pump’s physical specs to your unit and provide your model details to the seller for verification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasure shaft: 7\/8\" diameter required.\u003c\/li\u003e\n  \u003cli\u003eConfirm 3-bolt pattern: 7 11\/16\" x 6 3\/16\" x 6 7\/16\" with 4\" center to each outer hole.\u003c\/li\u003e\n  \u003cli\u003eCheck inlet\/outlet orientation: rear-facing vertical mount.\u003c\/li\u003e\n  \u003cli\u003eVerify engine power: minimum 5.5 HP recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance and pressure specifications does this pump deliver?\u003c\/h3\u003e\n\u003cp\u003eThis pump is engineered for a maximum working pressure of 2800 PSI and a peak flow of 2.3 GPM, suitable for household and light-duty commercial cleaning tasks. Operating within these limits preserves pump longevity and safety.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaximum pressure: 2800 PSI.\u003c\/li\u003e\n  \u003cli\u003eMaximum flow: 2.3 GPM.\u003c\/li\u003e\n  \u003cli\u003eMax pump speed: 3400 RPM.\u003c\/li\u003e\n  \u003cli\u003eMaximum water temperature: 140°F (60°C).\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat installation details and hardware should I prepare for?\u003c\/h3\u003e\n\u003cp\u003eThe pump ships with the pump body, chemical injector, unloader, thermal release valve, outlet tube, hose and keyway, but you may need longer bolts or spacers depending on your engine and frame. If the engine shaft is longer or pump legs contact the frame, use the appropriate spacers to prevent stress on the pump legs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncluded: pump assembly, chemical injector, unloader, thermal valve and outlet tube.\u003c\/li\u003e\n  \u003cli\u003eCommon extra hardware: (2) 5\/16\"-18 x 2-1\/2\" and (1) 5\/16\"-18 x 3-1\/2\" bolts; spacers\/washers sold separately.\u003c\/li\u003e\n  \u003cli\u003eNote: pump head can be flipped; some engines require pump removal to change oil.\u003c\/li\u003e\n  \u003cli\u003eDo not exceed maximum rated PSI to avoid damage or injury.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does maintenance and safety work with this pump?\u003c\/h3\u003e\n\u003cp\u003eBasic care preserves performance: use clean water, avoid running above rated pressure, and ensure thermal release functions correctly to prevent overheating. Follow general pressure washer safety—secure connections, inspect seals and replace any damaged hoses or fittings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse recommended water temperature (max 140°F).\u003c\/li\u003e\n  \u003cli\u003eDo not run pump above 2800 PSI.\u003c\/li\u003e\n  \u003cli\u003eInspect unloader and thermal valve periodically for proper operation.\u003c\/li\u003e\n  \u003cli\u003eReplace worn seals and hoses promptly to prevent leaks and damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This Himore ROP Shop 2800 PSI pump is aimed at DIYers, small contractors and owners of Black Max BM80913\/BM80919-style pressure washers who need a reliable vertical replacement pump with integrated chemical feed and safety features. If you maintain your equipment, can verify mounting and shaft dimensions, and have at least a 5.5 HP engine to drive it, this pump is a practical swap to restore original cleaning performance. Contact the seller with model, serial, and engine details if you need fitment help before buying.\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: Will this pump fit my Black Max BM80913?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It is made to fit BM80913-style units, but confirm shaft size (7\/8\"), mounting bolt pattern and rear-facing vertical orientation before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I run this pump on a 4 HP engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, the pump needs at least about 5.5 HP to reliably achieve rated PSI and avoid premature wear.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Himore","offers":[{"title":"Default Title","offer_id":56840235286868,"sku":"B072LHT9ZS","price":154.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/himore-front-assembly-view.jpg?v=1787069730","url":"https:\/\/gardenluxe.co.uk\/products\/himore-pressure-washer-pump-replacement-2800-psi-vertical-pump-2-3-gpm-for-black-max-bm80913-bm80919","provider":"Gardenluxe Uk","version":"1.0","type":"link"}