{"product_id":"yamatic-triplex-pressure-washer-pump-3-4-shaft-2800-3700-psi-2-5-gpm-horizontal-pre-filled-oil","title":"YAMATIC Triplex Pressure Washer Pump 3\/4\" Shaft 2800–3700 PSI 2.5 GPM — Horizontal, Pre-filled Oil","description":"\u003cp\u003e\u003cstrong\u003eThe YAMATIC Triplex 3\/4\" shaft pressure-washer pump is a heavy-duty horizontal replacement pump delivering 2800–3700 PSI at 2.5 GPM for 5–8 HP engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis pump is built as a direct, high-durability replacement for many common residential and light-professional pressure-washer models. Designed around a triplex plunger assembly and upgraded components, it offers longer runtime, reduced vibration and straightforward installation with the included mounting hardware and accessories. It ships pre-filled with SAE 15W-40 oil so you can install and test quickly; just remember the recommended oil-change interval for peak life.\u003c\/p\u003e\n\n\u003ch3\u003eWill this pump fit my machine?\u003c\/h3\u003e\n\u003cp\u003eCompatibility depends on shaft orientation, shaft size and machine output. This pump fits only horizontal 3\/4\" drive shafts and is intended for pressure washers driven by 5–8 HP (160–270 cc) engines producing 2800–3700 PSI at about 2.5 GPM. It is compatible with many aftermarket and OEM platforms when those conditions match.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRequires horizontal 3\/4\" keyed shaft (key width 3\/16\").\u003c\/li\u003e\n  \u003cli\u003eWorks with 5–8 HP (160–270 cc) engines.\u003c\/li\u003e\n  \u003cli\u003ePressure rating: 2800–3700 PSI; flow: ~2.5 GPM.\u003c\/li\u003e\n  \u003cli\u003eKnown compatible models: select Simpson MorFlex, Santoprene, and common brands like Honda, DeWalt, AR, Powerstroke, Blackmax, Husky and others—verify shaft orientation and bolt pattern.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is this triplex pump compared to standard pumps?\u003c\/h3\u003e\n\u003cp\u003eThe YAMATIC Triplex design uses three plungers that reduce pulsation and mechanical stress, extending operational life and stabilizing output. Upgrades to the pump head material, forged connecting rod and added seal springs increase resistance to wear and to vibration-related loosening. The manufacturer rates the service life up to 500 hours—several times longer than typical economy pumps.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTriplex plunger assembly for smoother flow and reduced vibration.\u003c\/li\u003e\n  \u003cli\u003eUpgraded pump head material and forged connecting rod.\u003c\/li\u003e\n  \u003cli\u003eSeal-spring design to help keep oil seals seated under vibration.\u003c\/li\u003e\n  \u003cli\u003eRated to about 500 operating hours under typical conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the box and how quick is installation?\u003c\/h3\u003e\n\u003cp\u003eThe pump ships with the essential hardware and accessories to make installation straightforward, so you can usually complete the swap in under 10 minutes if mounting points match. Included items eliminate the need to source small parts separately and help you test the unit immediately after mounting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComes pre-filled with SAE 15W-40 engine oil (change after first 50 operating hours).\u003c\/li\u003e\n  \u003cli\u003eIncludes 4 flange bolts, soap hose, five color-coded spray nozzles, and shaft keys.\u003c\/li\u003e\n  \u003cli\u003eMounting hole diagonal: 3 5\/8\"; hole center-to-center: 2 9\/16\"; depth: 2 5\/8\".\u003c\/li\u003e\n  \u003cli\u003eOnly fits horizontal 3\/4\" shaft pressure washer setups—confirm before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? If you operate a home or light-commercial pressure washer with a horizontal 3\/4\" shaft and a 5–8 HP engine, and you want a longer-lasting replacement pump that reduces vibration and maintains steady pressure, this YAMATIC triplex pump is made for you. It’s appropriate for users who need a straightforward swap with included hardware and prefer a robust, serviceable unit rather than a low-cost disposable pump. Verify shaft orientation, key size and bolt pattern against your machine before ordering to ensure compatibility.\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: Does this pump fit vertical shafts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — the YAMATIC pump fits only horizontal 3\/4\" keyed shafts. Check shaft orientation before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: When should I change the oil?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The pump ships with SAE 15W-40; change the oil after the first 50 operating hours and then per normal maintenance intervals.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"YAMATIC","offers":[{"title":"Default Title","offer_id":56805669044564,"sku":"B0FFSZXCBD","price":288.63,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/yamatic-front-pump-assembly.jpg?v=1786808688","url":"https:\/\/gardenluxe.co.uk\/products\/yamatic-triplex-pressure-washer-pump-3-4-shaft-2800-3700-psi-2-5-gpm-horizontal-pre-filled-oil","provider":"Gardenluxe Uk","version":"1.0","type":"link"}