{"product_id":"comet-fw2-3540s-pressure-washer-pump-3-4-gpm-4000-psi-1450-rpm-24mm-shaft","title":"Comet FW2-3540S Pressure Washer Pump – 3.4 GPM 4000 PSI 1450 RPM 24mm Shaft","description":"\u003cdiv class=\"\" data-turn-id-container=\"16f04fb9-512d-40bc-b706-2700ea0103ac\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-(--sticky-padding-top)\" dir=\"auto\" data-turn-id=\"16f04fb9-512d-40bc-b706-2700ea0103ac\" data-turn-id-container=\"16f04fb9-512d-40bc-b706-2700ea0103ac\" data-testid=\"conversation-turn-137\" data-turn=\"user\"\u003e\u003c\/section\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a41e0a9-6a1c-83ea-8a2f-44e0120c15c3-7\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a41e0a9-6a1c-83ea-8a2f-44e0120c15c3-7\" data-turn-id-container=\"request-6a41e0a9-6a1c-83ea-8a2f-44e0120c15c3-7\" data-testid=\"conversation-turn-138\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"cae36b80-793f-4e61-b3c3-9bdc7a6cfb20\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"203\"\u003e\u003cstrong data-start=\"0\" data-end=\"16\"\u003ePart Number:\u003c\/strong\u003e FW2-3540S\u003cbr data-start=\"26\" data-end=\"29\"\u003e\u003cstrong data-start=\"29\" data-end=\"42\"\u003eCategory:\u003c\/strong\u003e Pressure Washer Pumps → Triplex Pumps → Belt Drive Pressure Washer Pumps\u003cbr data-start=\"115\" data-end=\"118\"\u003e\u003cstrong data-start=\"118\" data-end=\"127\"\u003eType:\u003c\/strong\u003e Comet FW2-3540S Pressure Washer Pump – 3.4 GPM 4000 PSI 1450 RPM 31mm Shaft\u003c\/p\u003e\n\u003chr data-start=\"205\" data-end=\"208\"\u003e\n\u003cp data-start=\"289\" data-end=\"737\"\u003eThe \u003cstrong data-start=\"293\" data-end=\"351\"\u003eComet FW2-3540S Pressure Washer Pump (Part #FW2-3540S)\u003c\/strong\u003e is a genuine OEM triplex plunger pump engineered for demanding commercial and industrial pressure washing applications. Manufactured by \u003cstrong data-start=\"488\" data-end=\"503\"\u003eComet Pumps\u003c\/strong\u003e, this heavy-duty pump delivers \u003cstrong data-start=\"535\" data-end=\"559\"\u003e3.4 GPM at 4,000 PSI\u003c\/strong\u003e, providing exceptional cleaning power for fleet washing, construction equipment, industrial facilities, agricultural operations, and other continuous-duty cleaning applications.\u003c\/p\u003e\n\u003chr data-start=\"1417\" data-end=\"1420\"\u003e\n\u003ch1 data-section-id=\"1oef6j8\" data-start=\"1422\" data-end=\"1447\"\u003eKey Features \u0026amp; Benefits\u003c\/h1\u003e\n\u003cul data-start=\"1449\" data-end=\"1935\"\u003e\n\u003cli data-section-id=\"zrz0lp\" data-start=\"1449\" data-end=\"1497\"\u003eGenuine Comet OEM triplex pressure washer pump\u003c\/li\u003e\n\u003cli data-section-id=\"op7iqh\" data-start=\"1498\" data-end=\"1522\"\u003ePart Number: FW2-3540S\u003c\/li\u003e\n\u003cli data-section-id=\"19tw6a9\" data-start=\"1523\" data-end=\"1558\"\u003eHeavy-duty triplex plunger design\u003c\/li\u003e\n\u003cli data-section-id=\"cpnkas\" data-start=\"1559\" data-end=\"1596\"\u003eDelivers up to 3.4 GPM at 4,000 PSI\u003c\/li\u003e\n\u003cli data-section-id=\"e8cdzb\" data-start=\"1597\" data-end=\"1654\"\u003eLow-speed 1,450 RPM operation for extended service life\u003c\/li\u003e\n\u003cli data-section-id=\"68iu1r\" data-start=\"1655\" data-end=\"1674\"\u003e31 mm solid shaft\u003c\/li\u003e\n\u003cli data-section-id=\"1p7k3pz\" data-start=\"1675\" data-end=\"1699\"\u003e18 mm ceramic plungers\u003c\/li\u003e\n\u003cli data-section-id=\"3wdm8b\" data-start=\"1700\" data-end=\"1722\"\u003e1\/2\" FPT water inlet\u003c\/li\u003e\n\u003cli data-section-id=\"wqesop\" data-start=\"1723\" data-end=\"1754\"\u003e3\/8\" FPT high-pressure outlet\u003c\/li\u003e\n\u003cli data-section-id=\"q8vjgf\" data-start=\"1755\" data-end=\"1806\"\u003eCompatible with belt-drive and gear-drive systems\u003c\/li\u003e\n\u003cli data-section-id=\"15cs76z\" data-start=\"1807\" data-end=\"1839\"\u003eRequires approximately 9.5 BHP\u003c\/li\u003e\n\u003cli data-section-id=\"j563ml\" data-start=\"1840\" data-end=\"1875\"\u003eSuitable for engines up to 12 GHP\u003c\/li\u003e\n\u003cli data-section-id=\"274p92\" data-start=\"1876\" data-end=\"1935\"\u003eOEM-quality durability for continuous-duty commercial use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1937\" data-end=\"1940\"\u003e\n\u003ch1 data-section-id=\"zjxypn\" data-start=\"1942\" data-end=\"1968\"\u003eTechnical Specifications\u003c\/h1\u003e\n\u003cp data-start=\"1970\" data-end=\"1996\"\u003e\u003cstrong data-start=\"1970\" data-end=\"1986\"\u003ePart Number:\u003c\/strong\u003e FW2-3540S\u003c\/p\u003e\n\u003cp data-start=\"1998\" data-end=\"2023\"\u003e\u003cstrong data-start=\"1998\" data-end=\"2013\"\u003ePump Model:\u003c\/strong\u003e FW2-3540S\u003c\/p\u003e\n\u003cp data-start=\"2025\" data-end=\"2054\"\u003e\u003cstrong data-start=\"2025\" data-end=\"2042\"\u003eManufacturer:\u003c\/strong\u003e Comet Pumps\u003c\/p\u003e\n\u003cp data-start=\"2056\" data-end=\"2102\"\u003e\u003cstrong data-start=\"2056\" data-end=\"2073\"\u003eProduct Type:\u003c\/strong\u003e Triplex Pressure Washer Pump\u003c\/p\u003e\n\u003cp data-start=\"2104\" data-end=\"2134\"\u003e\u003cstrong data-start=\"2104\" data-end=\"2126\"\u003eMaximum Flow Rate:\u003c\/strong\u003e 3.4 GPM\u003c\/p\u003e\n\u003cp data-start=\"2136\" data-end=\"2167\"\u003e\u003cstrong data-start=\"2136\" data-end=\"2157\"\u003eMaximum Pressure:\u003c\/strong\u003e 4,000 PSI\u003c\/p\u003e\n\u003cp data-start=\"2169\" data-end=\"2202\"\u003e\u003cstrong data-start=\"2169\" data-end=\"2192\"\u003eMaximum Pump Speed:\u003c\/strong\u003e 1,450 RPM\u003c\/p\u003e\n\u003cp data-start=\"2204\" data-end=\"2235\"\u003e\u003cstrong data-start=\"2204\" data-end=\"2231\"\u003eBrake Horsepower (BHP):\u003c\/strong\u003e 9.5\u003c\/p\u003e\n\u003cp data-start=\"2237\" data-end=\"2265\"\u003e\u003cstrong data-start=\"2237\" data-end=\"2262\"\u003eGas Horsepower (GHP):\u003c\/strong\u003e 12\u003c\/p\u003e\n\u003cp data-start=\"2267\" data-end=\"2288\"\u003e\u003cstrong data-start=\"2267\" data-end=\"2282\"\u003eShaft Size:\u003c\/strong\u003e 31 mm\u003c\/p\u003e\n\u003cp data-start=\"2290\" data-end=\"2321\"\u003e\u003cstrong data-start=\"2290\" data-end=\"2315\"\u003eCeramic Plunger Size:\u003c\/strong\u003e 18 mm\u003c\/p\u003e\n\u003cp data-start=\"2323\" data-end=\"2348\"\u003e\u003cstrong data-start=\"2323\" data-end=\"2339\"\u003eWater Inlet:\u003c\/strong\u003e 1\/2\" FPT\u003c\/p\u003e\n\u003cp data-start=\"2350\" data-end=\"2384\"\u003e\u003cstrong data-start=\"2350\" data-end=\"2375\"\u003eHigh-Pressure Outlet:\u003c\/strong\u003e 3\/8\" FPT\u003c\/p\u003e\n\u003cp data-start=\"2386\" data-end=\"2431\"\u003e\u003cstrong data-start=\"2386\" data-end=\"2406\"\u003eConnection Size:\u003c\/strong\u003e 1\/2\" Inlet \/ 3\/8\" Outlet\u003c\/p\u003e\n\u003cp data-start=\"2433\" data-end=\"2451\"\u003e\u003cstrong data-start=\"2433\" data-end=\"2444\"\u003eWeight:\u003c\/strong\u003e 20 lbs\u003c\/p\u003e\n\u003cp data-start=\"2453\" data-end=\"2477\"\u003e\u003cstrong data-start=\"2453\" data-end=\"2473\"\u003eOEM Replacement:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003chr data-start=\"2479\" data-end=\"2482\"\u003e\n\u003ch1 data-section-id=\"1w7a361\" data-start=\"2484\" data-end=\"2509\"\u003eCompatible Applications\u003c\/h1\u003e\n\u003cp data-start=\"2511\" data-end=\"2578\"\u003eDesigned for use with compatible pressure washer systems featuring:\u003c\/p\u003e\n\u003cul data-start=\"2580\" data-end=\"2888\"\u003e\n\u003cli data-section-id=\"t8agpk\" data-start=\"2580\" data-end=\"2607\"\u003e31 mm shaft drive systems\u003c\/li\u003e\n\u003cli data-section-id=\"e1w54q\" data-start=\"2608\" data-end=\"2637\"\u003eBelt-drive pressure washers\u003c\/li\u003e\n\u003cli data-section-id=\"xch5v8\" data-start=\"2638\" data-end=\"2667\"\u003eGear-drive pressure washers\u003c\/li\u003e\n\u003cli data-section-id=\"1ftw8hk\" data-start=\"2668\" data-end=\"2697\"\u003eCommercial pressure washers\u003c\/li\u003e\n\u003cli data-section-id=\"1wpc0sg\" data-start=\"2698\" data-end=\"2729\"\u003eIndustrial cleaning equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1hb3h7x\" data-start=\"2730\" data-end=\"2753\"\u003eFleet washing systems\u003c\/li\u003e\n\u003cli data-section-id=\"9bm7jy\" data-start=\"2754\" data-end=\"2787\"\u003eAgricultural equipment cleaning\u003c\/li\u003e\n\u003cli data-section-id=\"1i0u86j\" data-start=\"2788\" data-end=\"2814\"\u003eManufacturing facilities\u003c\/li\u003e\n\u003cli data-section-id=\"6hse24\" data-start=\"2815\" data-end=\"2858\"\u003eEquipment replacement and repair projects\u003c\/li\u003e\n\u003cli data-section-id=\"mt98dm\" data-start=\"2859\" data-end=\"2888\"\u003eOEM equipment installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2890\" data-end=\"3020\"\u003eAlways verify shaft dimensions, mounting configuration, horsepower requirements, and pressure\/flow specifications before ordering.\u003c\/p\u003e\n\u003chr data-start=\"3022\" data-end=\"3025\"\u003e\n\u003ch1 data-section-id=\"1ebu7jn\" data-start=\"3027\" data-end=\"3065\"\u003eFunction of the Pressure Washer Pump\u003c\/h1\u003e\n\u003cp data-start=\"3067\" data-end=\"3092\"\u003eThe FW2-3540S pump helps:\u003c\/p\u003e\n\u003cul data-start=\"3094\" data-end=\"3381\"\u003e\n\u003cli data-section-id=\"tzb31q\" data-start=\"3094\" data-end=\"3135\"\u003eDeliver up to \u003cstrong data-start=\"3110\" data-end=\"3121\"\u003e3.4 GPM\u003c\/strong\u003e of water flow\u003c\/li\u003e\n\u003cli data-section-id=\"z8nl78\" data-start=\"3136\" data-end=\"3186\"\u003eGenerate operating pressures up to \u003cstrong data-start=\"3173\" data-end=\"3186\"\u003e4,000 PSI\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ob8uf6\" data-start=\"3187\" data-end=\"3242\"\u003eProvide reliable continuous-duty cleaning performance\u003c\/li\u003e\n\u003cli data-section-id=\"1r1ucc1\" data-start=\"3243\" data-end=\"3283\"\u003eOperate efficiently at low pump speeds\u003c\/li\u003e\n\u003cli data-section-id=\"63inim\" data-start=\"3284\" data-end=\"3323\"\u003eReduce heat buildup and internal wear\u003c\/li\u003e\n\u003cli data-section-id=\"1rf54za\" data-start=\"3324\" data-end=\"3381\"\u003eExtend equipment service life in demanding applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3383\" data-end=\"3524\"\u003eIts heavy-duty triplex plunger design provides superior durability, smoother operation, and longer service life than high-speed pump designs.\u003c\/p\u003e\n\u003chr data-start=\"3526\" data-end=\"3529\"\u003e\n\u003ch1 data-section-id=\"mqxmo4\" data-start=\"3531\" data-end=\"3567\"\u003eCommon Signs Replacement Is Needed\u003c\/h1\u003e\n\u003cp data-start=\"3569\" data-end=\"3600\"\u003eReplace the pump if you notice:\u003c\/p\u003e\n\u003cul data-start=\"3602\" data-end=\"3825\"\u003e\n\u003cli data-section-id=\"zu24k4\" data-start=\"3602\" data-end=\"3630\"\u003eReduced operating pressure\u003c\/li\u003e\n\u003cli data-section-id=\"1f1izt\" data-start=\"3631\" data-end=\"3653\"\u003eDecreased water flow\u003c\/li\u003e\n\u003cli data-section-id=\"10eqapm\" data-start=\"3654\" data-end=\"3674\"\u003eWater or oil leaks\u003c\/li\u003e\n\u003cli data-section-id=\"rs3f56\" data-start=\"3675\" data-end=\"3702\"\u003eExcessive operating noise\u003c\/li\u003e\n\u003cli data-section-id=\"1g2txwa\" data-start=\"3703\" data-end=\"3736\"\u003eCracked or damaged pump housing\u003c\/li\u003e\n\u003cli data-section-id=\"16xn7rj\" data-start=\"3737\" data-end=\"3762\"\u003eExcessive internal wear\u003c\/li\u003e\n\u003cli data-section-id=\"1alt067\" data-start=\"3763\" data-end=\"3793\"\u003eLoss of cleaning performance\u003c\/li\u003e\n\u003cli data-section-id=\"1s772py\" data-start=\"3794\" data-end=\"3825\"\u003ePump failure during operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3827\" data-end=\"3929\"\u003eReplacing a worn pump restores pressure washer performance while minimizing costly equipment downtime.\u003c\/p\u003e\n\u003chr data-start=\"3931\" data-end=\"3934\"\u003e\n\u003ch1 data-section-id=\"1547z5u\" data-start=\"3936\" data-end=\"3966\"\u003eInstallation \u0026amp; Service Notes\u003c\/h1\u003e\n\u003cul data-start=\"3968\" data-end=\"4552\"\u003e\n\u003cli data-section-id=\"iv93qe\" data-start=\"3968\" data-end=\"4032\"\u003eShut down the pressure washer and relieve all system pressure.\u003c\/li\u003e\n\u003cli data-section-id=\"1me0y3q\" data-start=\"4033\" data-end=\"4083\"\u003eDisconnect the engine or motor before servicing.\u003c\/li\u003e\n\u003cli data-section-id=\"1ee34zx\" data-start=\"4084\" data-end=\"4225\"\u003eVerify compatibility with the \u003cstrong data-start=\"4116\" data-end=\"4131\"\u003e31 mm shaft\u003c\/strong\u003e, mounting configuration, pulley alignment, horsepower requirements, and plumbing connections.\u003c\/li\u003e\n\u003cli data-section-id=\"rdentd\" data-start=\"4226\" data-end=\"4292\"\u003eInstall the pump according to the manufacturer's specifications.\u003c\/li\u003e\n\u003cli data-section-id=\"u6is5z\" data-start=\"4293\" data-end=\"4359\"\u003eConnect the \u003cstrong data-start=\"4307\" data-end=\"4325\"\u003e1\/2\" FPT inlet\u003c\/strong\u003e and \u003cstrong data-start=\"4330\" data-end=\"4349\"\u003e3\/8\" FPT outlet\u003c\/strong\u003e fittings.\u003c\/li\u003e\n\u003cli data-section-id=\"n0r99j\" data-start=\"4360\" data-end=\"4440\"\u003eFill the crankcase with the recommended pump oil before operation if required.\u003c\/li\u003e\n\u003cli data-section-id=\"z9jstr\" data-start=\"4441\" data-end=\"4484\"\u003ePrime the pump with water before startup.\u003c\/li\u003e\n\u003cli data-section-id=\"2i5ge8\" data-start=\"4485\" data-end=\"4552\"\u003eVerify proper operation and inspect for leaks after installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"4554\" data-end=\"4748\"\u003e\u003cstrong data-start=\"4554\" data-end=\"4568\"\u003eImportant:\u003c\/strong\u003e Never operate the pump without an adequate water supply. Running the pump dry can quickly damage the ceramic plungers, seals, and valves, significantly reducing pump service life.\u003c\/p\u003e\n\u003chr data-start=\"4750\" data-end=\"4753\"\u003e\n\u003ch1 data-section-id=\"16tfrdt\" data-start=\"4755\" data-end=\"4784\"\u003eMaintenance Recommendations\u003c\/h1\u003e\n\u003cul data-start=\"4786\" data-end=\"5264\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"79aafo\" data-start=\"4786\" data-end=\"4883\"\u003eCheck the pump oil level regularly and change the oil according to Comet maintenance schedules.\u003c\/li\u003e\n\u003cli data-section-id=\"1mr6qh4\" data-start=\"4884\" data-end=\"4977\"\u003eInspect ceramic plungers, packings, seals, valves, and fittings during routine maintenance.\u003c\/li\u003e\n\u003cli data-section-id=\"102oikd\" data-start=\"4978\" data-end=\"5043\"\u003eMaintain clean, filtered inlet water to minimize internal wear.\u003c\/li\u003e\n\u003cli data-section-id=\"1o6agge\" data-start=\"5044\" data-end=\"5119\"\u003eCheck belt alignment and belt tension periodically on belt-drive systems.\u003c\/li\u003e\n\u003cli data-section-id=\"qwqn77\" data-start=\"5120\" data-end=\"5264\" data-is-last-node=\"\"\u003eUse only genuine OEM Comet replacement parts and approved lubricants to maintain optimum pump performance, reliability, and long service life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Comet","offers":[{"title":"Default Title","offer_id":53445770150251,"sku":null,"price":855.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/9201\/5723\/files\/FW2-3540S.jpg?v=1782921482","url":"https:\/\/generalsprayers.com\/products\/comet-fw2-3540s-pressure-washer-pump-3-4-gpm-4000-psi-1450-rpm-24mm-shaft","provider":"GeneralSprayers","version":"1.0","type":"link"}