{"product_id":"605178-plug-pipe-3-4-allen-head","title":"Indmar 605178 Pipe Plug 3\/4\"","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0056\/9429\/2079\/files\/logo-indmar-min_0e25333a-de6f-4d2f-8df6-c5860601bedc.png?v=1776958495\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-69ea37f2-9634-83ea-95ed-3658eca80b3e-20\" 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-69ea37f2-9634-83ea-95ed-3658eca80b3e-20\" data-turn-id-container=\"request-69ea37f2-9634-83ea-95ed-3658eca80b3e-20\" data-testid=\"conversation-turn-274\" 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=\"12db9fcb-9ecf-4574-a08e-102ccfb0aa9f\" 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 dark markdown-new-styling\"\u003e\n\u003ch2 data-section-id=\"iqlvul\" data-start=\"0\" data-end=\"33\"\u003eIndmar 605178 Pipe Plug 3\/4\"\u003c\/h2\u003e\n\u003cp data-start=\"36\" data-end=\"330\"\u003eMaintain reliable cooling system sealing and dependable engine performance with the Indmar 605178 Pipe Plug 3\/4\". Designed as a genuine OEM replacement, this pipe plug is used in engine block, water jacket, and cooling system applications where secure sealing is essential for proper operation.\u003c\/p\u003e\n\u003cp data-start=\"332\" data-end=\"704\"\u003eMarine cooling systems are constantly exposed to heat, pressure, moisture, and corrosion. Over time, pipe plugs can become damaged, corroded, or difficult to seal due to repeated maintenance and exposure to harsh marine environments. Replacing worn plugs helps prevent coolant leaks, maintain proper system pressure, and protect the engine from overheating-related issues.\u003c\/p\u003e\n\u003cp data-start=\"706\" data-end=\"1058\"\u003eManufactured to Indmar factory specifications, the 605178 3\/4\" pipe plug is built using durable marine-grade materials engineered for long-term reliability in both freshwater and saltwater conditions. Designed as a direct-fit replacement, it provides dependable sealing performance and straightforward installation for compatible Indmar marine engines.\u003c\/p\u003e\n\u003chr data-start=\"1060\" data-end=\"1063\"\u003e\n\u003ch3 data-section-id=\"lmqikf\" data-start=\"1065\" data-end=\"1093\"\u003eCommon Engine Fitments\u003c\/h3\u003e\n\u003cp data-start=\"1094\" data-end=\"1182\"\u003eThe Indmar 605178 pipe plug is commonly used on select Indmar marine engines, including:\u003c\/p\u003e\n\u003cul data-start=\"1184\" data-end=\"1359\"\u003e\n\u003cli data-section-id=\"1desx88\" data-start=\"1184\" data-end=\"1207\"\u003eIndmar Assault 5.7L\u003c\/li\u003e\n\u003cli data-section-id=\"1wc08cw\" data-start=\"1208\" data-end=\"1230\"\u003eIndmar Monsoon 325\u003c\/li\u003e\n\u003cli data-section-id=\"1wbyrgz\" data-start=\"1231\" data-end=\"1253\"\u003eIndmar Monsoon 340\u003c\/li\u003e\n\u003cli data-section-id=\"1h4pca4\" data-start=\"1254\" data-end=\"1276\"\u003eIndmar Assault 325\u003c\/li\u003e\n\u003cli data-section-id=\"89pbja\" data-start=\"1277\" data-end=\"1296\"\u003eIndmar 5.0L MPI\u003c\/li\u003e\n\u003cli data-section-id=\"piq4u9\" data-start=\"1297\" data-end=\"1316\"\u003eIndmar 5.7L MPI\u003c\/li\u003e\n\u003cli data-section-id=\"1hk6wam\" data-start=\"1317\" data-end=\"1359\"\u003eSelect Indmar 6.0L engine applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1361\" data-end=\"1399\"\u003eThese engines are frequently found in:\u003c\/p\u003e\n\u003ch4 data-start=\"1401\" data-end=\"1418\"\u003eSupra Models\u003c\/h4\u003e\n\u003cul data-start=\"1419\" data-end=\"1528\"\u003e\n\u003cli data-section-id=\"hx8ns4\" data-start=\"1419\" data-end=\"1441\"\u003eSupra Launch 20SSV\u003c\/li\u003e\n\u003cli data-section-id=\"1y4uqed\" data-start=\"1442\" data-end=\"1462\"\u003eSupra Launch 21V\u003c\/li\u003e\n\u003cli data-section-id=\"13dfkxl\" data-start=\"1463\" data-end=\"1485\"\u003eSupra Sunsport 22V\u003c\/li\u003e\n\u003cli data-section-id=\"y12vv\" data-start=\"1486\" data-end=\"1501\"\u003eSupra 22SSV\u003c\/li\u003e\n\u003cli data-section-id=\"1vbkmc7\" data-start=\"1502\" data-end=\"1528\"\u003eSupra SA and SL models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-start=\"1530\" data-end=\"1548\"\u003eMoomba Models\u003c\/h4\u003e\n\u003cul data-start=\"1549\" data-end=\"1645\"\u003e\n\u003cli data-section-id=\"1jyt31p\" data-start=\"1549\" data-end=\"1570\"\u003eMoomba Mobius LSV\u003c\/li\u003e\n\u003cli data-section-id=\"1kccnk6\" data-start=\"1571\" data-end=\"1592\"\u003eMoomba Mobius XLV\u003c\/li\u003e\n\u003cli data-section-id=\"1ybu7ou\" data-start=\"1593\" data-end=\"1611\"\u003eMoomba Outback\u003c\/li\u003e\n\u003cli data-section-id=\"78a218\" data-start=\"1612\" data-end=\"1627\"\u003eMoomba Mojo\u003c\/li\u003e\n\u003cli data-section-id=\"bs2sd6\" data-start=\"1628\" data-end=\"1645\"\u003eMoomba Kaiyen\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1647\" data-end=\"1760\"\u003eAdditional applications may include Malibu and MasterCraft boats equipped with compatible Indmar engine packages.\u003c\/p\u003e\n\u003cp data-start=\"1762\" data-end=\"1948\"\u003eThe 605178 plug is commonly used in engine block and cooling system water jacket ports where maintaining a secure seal is essential for reliable engine cooling and winterization service.\u003c\/p\u003e\n\u003cp data-start=\"1950\" data-end=\"2122\"\u003eFitment may vary depending on engine serial number and cooling system configuration, so confirming compatibility with part number \u003cstrong data-start=\"2080\" data-end=\"2090\"\u003e605178\u003c\/strong\u003e before ordering is recommended.\u003c\/p\u003e\n\u003chr data-start=\"2124\" data-end=\"2127\"\u003e\n\u003ch3 data-section-id=\"1iz91iu\" data-start=\"2129\" data-end=\"2145\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"2146\" data-end=\"2485\"\u003e\n\u003cli data-section-id=\"1467mgx\" data-start=\"2146\" data-end=\"2183\"\u003eGenuine Indmar OEM 3\/4\" pipe plug\u003c\/li\u003e\n\u003cli data-section-id=\"1z0z2dy\" data-start=\"2184\" data-end=\"2239\"\u003eHelps seal engine block and cooling system passages\u003c\/li\u003e\n\u003cli data-section-id=\"16es6ue\" data-start=\"2240\" data-end=\"2290\"\u003eDesigned for Indmar marine engine applications\u003c\/li\u003e\n\u003cli data-section-id=\"15kswm3\" data-start=\"2291\" data-end=\"2360\"\u003eMarine-grade construction for durability and corrosion resistance\u003c\/li\u003e\n\u003cli data-section-id=\"1h10zlz\" data-start=\"2361\" data-end=\"2425\"\u003eHelps prevent coolant leaks and cooling system pressure loss\u003c\/li\u003e\n\u003cli data-section-id=\"iy0gvr\" data-start=\"2426\" data-end=\"2485\"\u003eDirect-fit replacement for straightforward installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2487\" data-end=\"2490\"\u003e\n\u003ch3 data-section-id=\"128hf3u\" data-start=\"2492\" data-end=\"2537\"\u003eWhy Replace a Cooling System Pipe Plug?\u003c\/h3\u003e\n\u003cp data-start=\"2538\" data-end=\"2794\"\u003ePipe plugs are regularly removed during maintenance and winterization, which can eventually lead to damaged threads, corrosion, or poor sealing surfaces. Replacing worn plugs helps maintain proper cooling system integrity and dependable engine performance.\u003c\/p\u003e\n\u003cp data-start=\"2796\" data-end=\"2987\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eIf you’re servicing an Indmar-powered Supra, Moomba, Malibu, or MasterCraft, the 605178 pipe plug delivers the OEM-quality fit and reliable sealing performance your cooling system depends on.\u003c\/p\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\n\u003c\/div\u003e","brand":"Indmar","offers":[{"title":"Default Title","offer_id":48900913430785,"sku":"605178","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0056\/9429\/2079\/files\/605178_20180405_152117.jpg?v=1779475273","url":"https:\/\/inboardpartshq.com\/products\/605178-plug-pipe-3-4-allen-head","provider":"Inboard Parts HQ","version":"1.0","type":"link"}