{"product_id":"merc-782","title":"Mercury Quicksilver Power Steering Fluid 858078Q01","description":"\u003cdiv class=\"\" data-turn-id-container=\"request-69e68f09-0808-8327-bfd9-932b81cf1d60-32\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\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-69e68f09-0808-8327-bfd9-932b81cf1d60-32\" data-testid=\"conversation-turn-286\" data-scroll-anchor=\"false\" 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 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=\"48eaec34-8c04-4f1f-835e-cbe4708f3e1e\" dir=\"auto\" data-message-model-slug=\"gpt-5-5-thinking\" 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 w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"94\" data-end=\"608\"\u003eMercury Quicksilver 858078Q01 is genuine OEM \u003cstrong data-start=\"139\" data-end=\"172\"\u003eHydraulic Helm Steering Fluid\u003c\/strong\u003e supplied in a \u003cstrong data-start=\"187\" data-end=\"203\"\u003e32 oz bottle\u003c\/strong\u003e for compatible non-power hydraulic steering systems. It is formulated for marine hydraulic helm systems where the steering fluid must provide proper lubrication, smooth steering response, and long steering-system service life. This is the correct Mercury \/ Quicksilver fluid for applications that specify \u003cstrong data-start=\"509\" data-end=\"542\"\u003ehydraulic helm steering fluid\u003c\/strong\u003e, not a general power trim fluid or electric power steering fluid.\u003c\/p\u003e\n\u003ch2 data-start=\"610\" data-end=\"629\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"613\" data-end=\"629\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"630\" data-end=\"1437\"\u003e\n\u003cli data-start=\"630\" data-end=\"688\"\u003eGenuine Mercury Marine \/ Quicksilver OEM steering fluid.\u003c\/li\u003e\n\u003cli data-start=\"689\" data-end=\"717\"\u003ePart number \u003cstrong data-start=\"703\" data-end=\"716\"\u003e858078Q01\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"718\" data-end=\"763\"\u003eFull OEM-style reference: \u003cstrong data-start=\"746\" data-end=\"762\"\u003e92-858078Q01\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"764\" data-end=\"807\"\u003eSupplied in a \u003cstrong data-start=\"780\" data-end=\"806\"\u003e32 oz \/ 1 quart bottle\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"808\" data-end=\"864\"\u003eDesigned for \u003cstrong data-start=\"823\" data-end=\"863\"\u003enon-power hydraulic steering systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"865\" data-end=\"951\"\u003eSuitable for \u003cstrong data-start=\"880\" data-end=\"934\"\u003eMerCruiser compact hydraulic helm steering systems\u003c\/strong\u003e where specified.\u003c\/li\u003e\n\u003cli data-start=\"952\" data-end=\"1098\"\u003eSuitable for compatible \u003cstrong data-start=\"978\" data-end=\"1016\"\u003ebolt-on hydraulic steering systems\u003c\/strong\u003e, including SeaStar-style helm systems where this fluid specification is required.\u003c\/li\u003e\n\u003cli data-start=\"1099\" data-end=\"1127\"\u003eMeets \u003cstrong data-start=\"1107\" data-end=\"1126\"\u003eMIL Spec H5606G\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1128\" data-end=\"1180\"\u003eHelps support smooth hydraulic steering operation.\u003c\/li\u003e\n\u003cli data-start=\"1181\" data-end=\"1286\"\u003eProduced to Mercury Marine OEM specifications for Mercury, Mariner, and MerCruiser marine applications.\u003c\/li\u003e\n\u003cli data-start=\"1287\" data-end=\"1437\"\u003eNot intended for non-compatible electric power steering systems or other systems requiring a different Mercury \/ Quicksilver steering or trim fluid.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1439\" data-end=\"1471\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1442\" data-end=\"1471\"\u003eApplication Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1472\" data-end=\"1663\"\u003eThis is \u003cstrong data-start=\"1480\" data-end=\"1514\"\u003enot an engine-specific product\u003c\/strong\u003e. It is selected by the boat’s \u003cstrong data-start=\"1545\" data-end=\"1587\"\u003ehydraulic steering system requirements\u003c\/strong\u003e and the fluid specification listed in the owner’s manual or service manual.\u003c\/p\u003e\n\u003cp data-start=\"1665\" data-end=\"1683\"\u003eCommonly used for:\u003c\/p\u003e\n\u003cul data-start=\"1684\" data-end=\"1985\"\u003e\n\u003cli data-start=\"1684\" data-end=\"1731\"\u003e\u003cstrong data-start=\"1686\" data-end=\"1731\"\u003eNon-power hydraulic helm steering systems\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1732\" data-end=\"1788\"\u003e\u003cstrong data-start=\"1734\" data-end=\"1788\"\u003eMerCruiser compact hydraulic helm steering systems\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1789\" data-end=\"1840\"\u003eCompatible \u003cstrong data-start=\"1802\" data-end=\"1840\"\u003ebolt-on hydraulic steering systems\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1841\" data-end=\"1985\"\u003eMercury, Mariner, and MerCruiser marine steering applications where \u003cstrong data-start=\"1911\" data-end=\"1939\"\u003e858078Q01 \/ 92-858078Q01\u003c\/strong\u003e or hydraulic helm steering fluid is specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1987\" data-end=\"2098\"\u003eDo not select this fluid by engine model alone. The correct match is the steering system and fluid requirement.\u003c\/p\u003e\n\u003ch2 data-start=\"2100\" data-end=\"2144\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2103\" data-end=\"2144\"\u003eFitment \u0026amp; System Compatibility Notice\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2145\" data-end=\"2492\"\u003eConfirm the correct steering-fluid requirement in the boat’s \u003cstrong data-start=\"2206\" data-end=\"2279\"\u003eowner’s manual, service manual, or helm steering system documentation\u003c\/strong\u003e before use. Hydraulic helm steering fluid, power trim and steering fluid, and synthetic electric power steering fluid are not always interchangeable, even though the containers and descriptions can sound similar.\u003c\/p\u003e\n\u003ch2 data-start=\"2494\" data-end=\"2536\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2497\" data-end=\"2536\"\u003eWhen This Product Needs Replacement\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2537\" data-end=\"2823\"\u003eUse this fluid when topping off, bleeding, flushing, or servicing a compatible hydraulic helm steering system. Steering fluid should be checked when steering becomes noisy, inconsistent, spongy, hard to turn, or after any steering component has been replaced, disconnected, or serviced.\u003c\/p\u003e\n\u003ch2 data-start=\"2825\" data-end=\"2850\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2828\" data-end=\"2850\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2851\" data-end=\"3218\"\u003eUse clean filling and bleeding equipment to avoid introducing dirt, water, or air into the steering system. Follow the steering-system manufacturer’s bleeding procedure, keep the reservoir filled during service, and do not mix with unknown or incompatible fluids. If old fluid is contaminated, discolored, or aerated, the system should be inspected before refilling.\u003c\/p\u003e\n\u003ch2 data-start=\"3220\" data-end=\"3260\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3223\" data-end=\"3260\"\u003eAlternate\/Superseded Part Numbers\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3261\" data-end=\"3303\"\u003eActive and related OEM references include:\u003c\/p\u003e\n\u003cul data-start=\"3304\" data-end=\"3338\"\u003e\n\u003cli data-start=\"3304\" data-end=\"3319\"\u003e\u003cstrong data-start=\"3306\" data-end=\"3319\"\u003e858078Q01\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"3320\" data-end=\"3338\"\u003e\u003cstrong data-start=\"3322\" data-end=\"3338\"\u003e92-858078Q01\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3340\" data-end=\"3402\"\u003eRelated earlier reference commonly associated with this fluid:\u003c\/p\u003e\n\u003cul data-start=\"3403\" data-end=\"3417\"\u003e\n\u003cli data-start=\"3403\" data-end=\"3417\"\u003e\u003cstrong data-start=\"3405\" data-end=\"3417\"\u003e862014Q1\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"3419\" data-end=\"3444\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3422\" data-end=\"3444\"\u003eParts Desk Insight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3445\" data-end=\"3765\"\u003eThe important detail with this bottle is that it is \u003cstrong data-start=\"3497\" data-end=\"3530\"\u003ehydraulic helm steering fluid\u003c\/strong\u003e for non-power hydraulic steering systems. It should not be confused with Mercury power trim fluid or synthetic electric power steering fluid, so checking the steering-system requirement first prevents the wrong fluid from being added.\u003c\/p\u003e\n\u003cp data-start=\"3767\" data-end=\"3836\"\u003e\u003cstrong data-start=\"3767\" data-end=\"3836\"\u003eShipping: Ships same or next day for fast Canada wide shipping. ⚓\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cdiv aria-hidden=\"true\" class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563885920292,"sku":"858078Q01","price":39.33,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/448e6b79-2aaf-45df-9236-e47fb107717b.png?v=1777419413","url":"https:\/\/marisolmarine.com\/products\/merc-782","provider":"Marisol Marine Company","version":"1.0","type":"link"}