{"product_id":"dolly-kit-for-ar-2780-check-valves-xw-xwa-pumps-oem-replacement-part","title":"Dolly Kit for AR 2780 Check Valves XW \u0026 XWA Pumps – OEM Replacement Part","description":"\u003cdiv class=\"\" data-turn-id-container=\"eab3c4f6-671e-4a1f-9f30-a6988b2f21f6\" 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=\"eab3c4f6-671e-4a1f-9f30-a6988b2f21f6\" data-turn-id-container=\"eab3c4f6-671e-4a1f-9f30-a6988b2f21f6\" data-testid=\"conversation-turn-351\" data-turn=\"user\"\u003e\u003c\/section\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a35562f-a1fc-83ea-bfdd-f10b85f84e9a-56\" 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-6a35562f-a1fc-83ea-bfdd-f10b85f84e9a-56\" data-turn-id-container=\"request-6a35562f-a1fc-83ea-bfdd-f10b85f84e9a-56\" data-testid=\"conversation-turn-352\" 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=\"78004be2-0d0f-436c-80f8-7801ae3482a1\" 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=\"streaming-animation markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"160\"\u003e\u003cstrong data-start=\"0\" data-end=\"16\"\u003ePart Number:\u003c\/strong\u003e 7424\u003cbr data-start=\"21\" data-end=\"24\"\u003e\u003cstrong data-start=\"24\" data-end=\"37\"\u003eCategory:\u003c\/strong\u003e Pressure Washer Parts → Pump Parts → Check Valves \u0026amp; Repair Kits\u003cbr data-start=\"101\" data-end=\"104\"\u003e\u003cstrong data-start=\"104\" data-end=\"113\"\u003eType:\u003c\/strong\u003e AR (Annovi Reverberi) KIT 2780 Check Valve Kit\u003c\/p\u003e\n\u003chr data-start=\"162\" data-end=\"165\"\u003e\n\u003cp data-start=\"249\" data-end=\"764\"\u003eThe \u003cstrong data-start=\"253\" data-end=\"319\"\u003eDolly Kit for AR 2780 Check Valves XW \u0026amp; XWA Pumps (Part #7424)\u003c\/strong\u003e is a genuine OEM replacement valve service kit designed to restore proper flow control and maintain peak performance in compatible \u003cstrong data-start=\"451\" data-end=\"516\"\u003eAnnovi Reverberi (AR) XW and XWA series triplex plunger pumps\u003c\/strong\u003e. This kit includes \u003cstrong data-start=\"536\" data-end=\"589\"\u003ereplacement check valves and O-rings (2x3 pieces)\u003c\/strong\u003e required for servicing worn, damaged, or contaminated valve assemblies, helping maintain consistent operating pressure, improve flow efficiency, and extend pump service life.\u003c\/p\u003e\n\u003chr data-start=\"1421\" data-end=\"1424\"\u003e\n\u003ch2 data-section-id=\"939trr\" data-start=\"1426\" data-end=\"1452\"\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul data-start=\"1454\" data-end=\"1971\"\u003e\n\u003cli data-section-id=\"ph475h\" data-start=\"1454\" data-end=\"1505\"\u003eGenuine AR (Annovi Reverberi) OEM replacement kit\u003c\/li\u003e\n\u003cli data-section-id=\"1w8x3ah\" data-start=\"1506\" data-end=\"1547\"\u003eDesigned for AR XW and XWA series pumps\u003c\/li\u003e\n\u003cli data-section-id=\"12s7kks\" data-start=\"1548\" data-end=\"1595\"\u003eIncludes replacement check valves and O-rings\u003c\/li\u003e\n\u003cli data-section-id=\"iqetag\" data-start=\"1596\" data-end=\"1652\"\u003eKit contains valve and sealing components (2x3 pieces)\u003c\/li\u003e\n\u003cli data-section-id=\"1nc9z11\" data-start=\"1653\" data-end=\"1691\"\u003eHelps restore proper valve operation\u003c\/li\u003e\n\u003cli data-section-id=\"dfja83\" data-start=\"1692\" data-end=\"1731\"\u003eMaintains operating pressure and flow\u003c\/li\u003e\n\u003cli data-section-id=\"127n7n5\" data-start=\"1732\" data-end=\"1776\"\u003eReduces internal leakage and pressure loss\u003c\/li\u003e\n\u003cli data-section-id=\"fwwkb1\" data-start=\"1777\" data-end=\"1814\"\u003eSupports efficient pump performance\u003c\/li\u003e\n\u003cli data-section-id=\"16r8rhd\" data-start=\"1815\" data-end=\"1855\"\u003eOEM-quality materials and construction\u003c\/li\u003e\n\u003cli data-section-id=\"11ske17\" data-start=\"1856\" data-end=\"1910\"\u003eIdeal for preventative maintenance and pump rebuilds\u003c\/li\u003e\n\u003cli data-section-id=\"1d7g3nt\" data-start=\"1911\" data-end=\"1938\"\u003eDirect replacement design\u003c\/li\u003e\n\u003cli data-section-id=\"18a0c0f\" data-start=\"1939\" data-end=\"1971\"\u003eHelps extend pump service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1973\" data-end=\"1976\"\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"1978\" data-end=\"2005\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp data-start=\"2007\" data-end=\"2028\"\u003e\u003cstrong data-start=\"2007\" data-end=\"2023\"\u003ePart Number:\u003c\/strong\u003e 7424\u003c\/p\u003e\n\u003cp data-start=\"2030\" data-end=\"2069\"\u003e\u003cstrong data-start=\"2030\" data-end=\"2047\"\u003eManufacturer:\u003c\/strong\u003e AR (Annovi Reverberi)\u003c\/p\u003e\n\u003cp data-start=\"2071\" data-end=\"2110\"\u003e\u003cstrong data-start=\"2071\" data-end=\"2101\"\u003eManufacturer Model Number:\u003c\/strong\u003e KIT 2780\u003c\/p\u003e\n\u003cp data-start=\"2112\" data-end=\"2183\"\u003e\u003cstrong data-start=\"2112\" data-end=\"2136\"\u003eProduct Description:\u003c\/strong\u003e Kit Dolly A2780 Valves + O-Rings (XW) (2x3 pc)\u003c\/p\u003e\n\u003cp data-start=\"2185\" data-end=\"2235\"\u003e\u003cstrong data-start=\"2185\" data-end=\"2202\"\u003eProduct Type:\u003c\/strong\u003e Check Valve \u0026amp; O-Ring Service Kit\u003c\/p\u003e\n\u003cp data-start=\"2237\" data-end=\"2279\"\u003e\u003cstrong data-start=\"2237\" data-end=\"2254\"\u003eKit Contents:\u003c\/strong\u003e Check Valves and O-Rings\u003c\/p\u003e\n\u003cp data-start=\"2281\" data-end=\"2333\"\u003e\u003cstrong data-start=\"2281\" data-end=\"2294\"\u003eQuantity:\u003c\/strong\u003e Valve and Seal Components (2x3 Pieces)\u003c\/p\u003e\n\u003cp data-start=\"2335\" data-end=\"2358\"\u003e\u003cstrong data-start=\"2335\" data-end=\"2358\"\u003ePump Compatibility:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2359\" data-end=\"2401\"\u003e\n\u003cli data-section-id=\"1f9txl0\" data-start=\"2359\" data-end=\"2379\"\u003eAR XW Series Pumps\u003c\/li\u003e\n\u003cli data-section-id=\"w2nc2t\" data-start=\"2380\" data-end=\"2401\"\u003eAR XWA Series Pumps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2403\" data-end=\"2427\"\u003e\u003cstrong data-start=\"2403\" data-end=\"2423\"\u003eOEM Replacement:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003cp data-start=\"2429\" data-end=\"2479\"\u003e\u003cstrong data-start=\"2429\" data-end=\"2445\"\u003eApplication:\u003c\/strong\u003e Pump Valve Maintenance and Repair\u003c\/p\u003e\n\u003chr data-start=\"2481\" data-end=\"2484\"\u003e\n\u003ch2 data-section-id=\"vx2wyp\" data-start=\"2486\" data-end=\"2508\"\u003eCommon Applications\u003c\/h2\u003e\n\u003cul data-start=\"2510\" data-end=\"2785\"\u003e\n\u003cli data-section-id=\"17xhecg\" data-start=\"2510\" data-end=\"2539\"\u003eAR XW pressure washer pumps\u003c\/li\u003e\n\u003cli data-section-id=\"9xbko1\" data-start=\"2540\" data-end=\"2570\"\u003eAR XWA pressure washer pumps\u003c\/li\u003e\n\u003cli data-section-id=\"1oa2tqu\" data-start=\"2571\" data-end=\"2610\"\u003eCommercial pressure washing equipment\u003c\/li\u003e\n\u003cli data-section-id=\"16ga20s\" data-start=\"2611\" data-end=\"2640\"\u003eIndustrial cleaning systems\u003c\/li\u003e\n\u003cli data-section-id=\"1navbxu\" data-start=\"2641\" data-end=\"2674\"\u003eAgricultural spraying equipment\u003c\/li\u003e\n\u003cli data-section-id=\"1hb3h7x\" data-start=\"2675\" data-end=\"2698\"\u003eFleet washing systems\u003c\/li\u003e\n\u003cli data-section-id=\"kd18ak\" data-start=\"2699\" data-end=\"2725\"\u003eWater transfer equipment\u003c\/li\u003e\n\u003cli data-section-id=\"w6mo30\" data-start=\"2726\" data-end=\"2745\"\u003eWash-down systems\u003c\/li\u003e\n\u003cli data-section-id=\"wx2rbd\" data-start=\"2746\" data-end=\"2785\"\u003ePump rebuild and maintenance services\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2787\" data-end=\"2790\"\u003e\n\u003ch2 data-section-id=\"ctfpuh\" data-start=\"2792\" data-end=\"2815\"\u003ePerformance Benefits\u003c\/h2\u003e\n\u003cul data-start=\"2817\" data-end=\"3123\"\u003e\n\u003cli data-section-id=\"fqnz9e\" data-start=\"2817\" data-end=\"2856\"\u003eRestores proper check valve operation\u003c\/li\u003e\n\u003cli data-section-id=\"1f2yd2j\" data-start=\"2857\" data-end=\"2903\"\u003eHelps maintain consistent operating pressure\u003c\/li\u003e\n\u003cli data-section-id=\"1g9sr4h\" data-start=\"2904\" data-end=\"2936\"\u003eImproves water flow efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"id47i5\" data-start=\"2937\" data-end=\"2974\"\u003eReduces internal bypass and leakage\u003c\/li\u003e\n\u003cli data-section-id=\"152r7fa\" data-start=\"2975\" data-end=\"3009\"\u003eSupports smooth pump performance\u003c\/li\u003e\n\u003cli data-section-id=\"1f4r8tb\" data-start=\"3010\" data-end=\"3051\"\u003eImproves pump reliability and longevity\u003c\/li\u003e\n\u003cli data-section-id=\"8jrmjj\" data-start=\"3052\" data-end=\"3095\"\u003eMaintains consistent cleaning performance\u003c\/li\u003e\n\u003cli data-section-id=\"lmun4u\" data-start=\"3096\" data-end=\"3123\"\u003eExtends pump service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3125\" data-end=\"3128\"\u003e\n\u003ch2 data-section-id=\"e2okhl\" data-start=\"3130\" data-end=\"3172\"\u003eSigns Check Valves May Need Replacement\u003c\/h2\u003e\n\u003cp data-start=\"3174\" data-end=\"3225\"\u003eReplace the check valves and O-rings if you notice:\u003c\/p\u003e\n\u003cul data-start=\"3227\" data-end=\"3457\"\u003e\n\u003cli data-section-id=\"5zjyxm\" data-start=\"3227\" data-end=\"3255\"\u003eLoss of operating pressure\u003c\/li\u003e\n\u003cli data-section-id=\"17x0na5\" data-start=\"3256\" data-end=\"3283\"\u003ePulsating pressure output\u003c\/li\u003e\n\u003cli data-section-id=\"1mlu30c\" data-start=\"3284\" data-end=\"3303\"\u003eReduced flow rate\u003c\/li\u003e\n\u003cli data-section-id=\"pmpq9m\" data-start=\"3304\" data-end=\"3328\"\u003eInternal water leakage\u003c\/li\u003e\n\u003cli data-section-id=\"1xk76v\" data-start=\"3329\" data-end=\"3362\"\u003eDifficulty maintaining pressure\u003c\/li\u003e\n\u003cli data-section-id=\"z63v0g\" data-start=\"3363\" data-end=\"3385\"\u003eExcessive valve wear\u003c\/li\u003e\n\u003cli data-section-id=\"1t2zv4u\" data-start=\"3386\" data-end=\"3425\"\u003eDamaged O-rings or sealing components\u003c\/li\u003e\n\u003cli data-section-id=\"1d1scdr\" data-start=\"3426\" data-end=\"3457\"\u003eInconsistent pump performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3459\" data-end=\"3462\"\u003e\n\u003ch2 data-section-id=\"16dprsq\" data-start=\"3464\" data-end=\"3485\"\u003eInstallation Notes\u003c\/h2\u003e\n\u003col data-start=\"3487\" data-end=\"3917\"\u003e\n\u003cli data-section-id=\"v1qt1w\" data-start=\"3487\" data-end=\"3552\"\u003eShut down the pressure washer and relieve all system pressure.\u003c\/li\u003e\n\u003cli data-section-id=\"1vuo091\" data-start=\"3553\" data-end=\"3590\"\u003eDisconnect power and water supply.\u003c\/li\u003e\n\u003cli data-section-id=\"465nl6\" data-start=\"3591\" data-end=\"3647\"\u003eRemove valve caps according to AR service procedures.\u003c\/li\u003e\n\u003cli data-section-id=\"1w53we4\" data-start=\"3648\" data-end=\"3691\"\u003eRemove worn valve and O-ring components.\u003c\/li\u003e\n\u003cli data-section-id=\"tiz0wt\" data-start=\"3692\" data-end=\"3727\"\u003eClean valve chambers thoroughly.\u003c\/li\u003e\n\u003cli data-section-id=\"1xg6fs5\" data-start=\"3728\" data-end=\"3785\"\u003eInstall new OEM check valves and O-rings from the kit.\u003c\/li\u003e\n\u003cli data-section-id=\"cjndz0\" data-start=\"3786\" data-end=\"3850\"\u003eReassemble the pump according to manufacturer specifications.\u003c\/li\u003e\n\u003cli data-section-id=\"1h14qb0\" data-start=\"3851\" data-end=\"3917\"\u003eTest operation and verify proper pressure and flow performance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-start=\"3919\" data-end=\"4056\"\u003e\u003cstrong data-start=\"3919\" data-end=\"3933\"\u003eImportant:\u003c\/strong\u003e Always consult the AR service manual and verify compatibility with your specific XW or XWA pump model before installation.\u003c\/p\u003e\n\u003chr data-start=\"4058\" data-end=\"4061\"\u003e\n\u003ch2 data-section-id=\"8fimbm\" data-start=\"4063\" data-end=\"4093\"\u003eMaintenance Recommendations\u003c\/h2\u003e\n\u003cul data-start=\"4095\" data-end=\"4403\"\u003e\n\u003cli data-section-id=\"lljp6b\" data-start=\"4095\" data-end=\"4144\"\u003eInspect valves during routine pump maintenance.\u003c\/li\u003e\n\u003cli data-section-id=\"1xqdbos\" data-start=\"4145\" data-end=\"4188\"\u003eReplace worn valves and O-rings promptly.\u003c\/li\u003e\n\u003cli data-section-id=\"1i58m47\" data-start=\"4189\" data-end=\"4224\"\u003eMaintain proper inlet filtration.\u003c\/li\u003e\n\u003cli data-section-id=\"ih7cye\" data-start=\"4225\" data-end=\"4269\"\u003eUse clean water sources whenever possible.\u003c\/li\u003e\n\u003cli data-section-id=\"1r2x7kj\" data-start=\"4270\" data-end=\"4326\"\u003eFollow manufacturer-recommended maintenance schedules.\u003c\/li\u003e\n\u003cli data-section-id=\"1vv9nrr\" data-start=\"4327\" data-end=\"4403\"\u003eAddress pressure fluctuations immediately to prevent additional pump wear.\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":"Annovi Reverberi","offers":[{"title":"Default Title","offer_id":53423042330987,"sku":null,"price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/9201\/5723\/files\/7424DOLLYKIT.webp?v=1782345374","url":"https:\/\/generalsprayers.com\/products\/dolly-kit-for-ar-2780-check-valves-xw-xwa-pumps-oem-replacement-part","provider":"GeneralSprayers","version":"1.0","type":"link"}