{"product_id":"toolcy-1-shaft-pressure-washer-pump-4200-psi-horizontal-1-shaft-adjustable-unloader-triplex-plunger","title":"TOOLCY 1\" Shaft Pressure Washer Pump 4200 PSI – Horizontal 1\" Shaft, Adjustable Unloader \u0026 Triplex Plunger","description":"\u003cp\u003e\u003cstrong\u003eTOOLCY's 1\" shaft triplex plunger pressure washer pump delivers up to 4200 PSI and an adjustable unloader for customized cleaning power.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis heavy-duty replacement pump is built for gas-powered washers with a horizontal 1\" shaft (10–15 HP or 270–420 cc engines). Its fully anodized crankcase, brass pump head and triplex plunger design are engineered to run smoothly and resist wear. The red adjustment knob lets you fine-tune pressure for different tasks, while the packaged nozzles and standard fittings make installation and use straightforward.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I adjust pressure for different cleaning jobs?\u003c\/h3\u003e\n\n\u003cp\u003eUse the prominent red adjustment knob to increase or decrease discharge pressure without changing nozzles. For longevity and reliable performance, aim for recommended working parameters rather than always running at maximum output.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRed knob offers on-the-fly pressure control up to 4200 PSI.\u003c\/li\u003e\n  \u003cli\u003eRecommended working pressure: ~3400 PSI at 3400 RPM for extended life.\u003c\/li\u003e\n  \u003cli\u003eIncludes 5 nozzles for varied spray patterns and cleaning intensity.\u003c\/li\u003e\n  \u003cli\u003eUnloader prevents overpressure when trigger is released.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich engines and pumps is this TOOLCY unit compatible with?\u003c\/h3\u003e\n\n\u003cp\u003eThe pump is designed for horizontal 1\" shaft gas engines commonly found on 10–15 HP or 270–420 cc power washers. It follows industry SAE flange dimensions and pairs with many OEM models when specs match.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eWorks with engines like Honda GX340, GX390, GX270 when orientation and shaft size match.\u003c\/li\u003e\n  \u003cli\u003eCompatible with Simpson, DeWalt, AR\/Annovi Reverberi models sharing similar specs.\u003c\/li\u003e\n  \u003cli\u003eStandard 3\/4\" garden-hose inlet and 3\/8\" quick-connect high-pressure outlet fittings.\u003c\/li\u003e\n  \u003cli\u003eVerify PSI, GPM, shaft diameter and inlet\/outlet connections before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat durability features extend the pump's service life?\u003c\/h3\u003e\n\n\u003cp\u003eTOOLCY uses durable materials and a proven internal layout to reduce wear and support continuous operation. The pump's construction focuses on corrosion resistance, strength and simplified maintenance.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFully anodized black crankcase improves corrosion resistance and appearance.\u003c\/li\u003e\n  \u003cli\u003eSolid brass pump head resists wear from pressurized water and detergents.\u003c\/li\u003e\n  \u003cli\u003eTriplex plunger configuration produces smoother flow and balanced loading.\u003c\/li\u003e\n  \u003cli\u003eAdvanced sight glass and improved oil seals eliminate the need for a dipstick.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to install and maintain this replacement pump?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is straightforward when your machine matches the pump's mounting and shaft specifications. Routine checks and proper operating pressures will keep the unit performing well for many seasons.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSAE-compliant flange and 1\" shaft hole match standard mountings for many models.\u003c\/li\u003e\n  \u003cli\u003ePre-fitted inlet\/outlet sizes reduce the need for adapters in most setups.\u003c\/li\u003e\n  \u003cli\u003eComplete accessory kit with five nozzles speeds setup and expands cleaning options.\u003c\/li\u003e\n  \u003cli\u003eEasy visual oil sight glass simplifies maintenance checks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This TOOLCY pump is aimed at homeowners and light-commercial users who need a robust, serviceable replacement for a horizontal-shaft gas pressure washer. If you run a 10–15 HP or 270–420 cc engine and want a durable pump with adjustable pressure and standard fittings, this offers a practical upgrade. Confirm engine orientation, shaft diameter, PSI and GPM compatibility before buying to ensure a smooth swap and reliable performance.\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: Can this pump reach 4200 PSI safely?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the pump is rated up to 4200 PSI, but running at about 3400 PSI and 3400 RPM is recommended for longer service life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this fit my Honda GX390 engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits many horizontal 1\" shaft engines like the GX390 if orientation, shaft diameter, PSI and inlet\/outlet match.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TOOLCY","offers":[{"title":"Default Title","offer_id":56801210007892,"sku":"B0C342S34V","price":351.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/toolcy-front-view-pump_f2589529-a78b-4f13-a55c-9469a60b15bb.jpg?v=1786739387","url":"https:\/\/gardenluxe.co.uk\/products\/toolcy-1-shaft-pressure-washer-pump-4200-psi-horizontal-1-shaft-adjustable-unloader-triplex-plunger","provider":"Gardenluxe Uk","version":"1.0","type":"link"}