{"product_id":"sierra-marine-water-pump-kit-sie-18-3575","title":"Sierra Marine Circulating Water Pump 18-3575 – MerCruiser \/ Volvo Penta \/ OMC GM 4 \u0026 6 Cylinder","description":"\u003cp data-start=\"413\" data-end=\"626\"\u003eThe \u003cstrong data-start=\"417\" data-end=\"458\"\u003eSierra 18-3575 Circulating Water Pump\u003c\/strong\u003e is a complete, engine-mounted cooling pump designed for GM-based inline 4-cylinder and 6-cylinder marine engines used in MerCruiser, Volvo Penta, and OMC applications.\u003c\/p\u003e\n\u003cp data-start=\"628\" data-end=\"802\"\u003eThis pump is responsible for circulating coolant (or raw water in open systems) through the engine block, maintaining proper operating temperature and preventing overheating.\u003c\/p\u003e\n\u003cp data-start=\"804\" data-end=\"1024\"\u003eThis is a \u003cstrong data-start=\"814\" data-end=\"846\"\u003ebelt-driven circulating pump\u003c\/strong\u003e, not a raw water impeller kit. It is a critical component of the engine cooling system and is commonly replaced when experiencing overheating, bearing failure, or coolant leaks.\u003c\/p\u003e\n\u003cp data-start=\"1026\" data-end=\"1188\"\u003eBuilt from new castings and engineered to meet or exceed OEM specifications, this pump delivers reliable performance and long service life in marine environments.\u003c\/p\u003e\n\u003chr data-start=\"1190\" data-end=\"1193\"\u003e\n\u003ch2 data-start=\"1195\" data-end=\"1214\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1198\" data-end=\"1214\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1215\" data-end=\"1574\"\u003e\n\u003cli data-start=\"1215\" data-end=\"1259\"\u003eComplete circulating water pump assembly\u003c\/li\u003e\n\u003cli data-start=\"1260\" data-end=\"1298\"\u003eEngine-mounted, belt-driven design\u003c\/li\u003e\n\u003cli data-start=\"1299\" data-end=\"1398\"\u003eBi-directional (fits standard \u0026amp; reverse rotation engines) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1399\" data-end=\"1438\"\u003eRestores proper coolant circulation\u003c\/li\u003e\n\u003cli data-start=\"1439\" data-end=\"1488\"\u003eMarine-grade corrosion-resistant construction\u003c\/li\u003e\n\u003cli data-start=\"1489\" data-end=\"1537\"\u003eBuilt from new castings (not remanufactured)\u003c\/li\u003e\n\u003cli data-start=\"1538\" data-end=\"1574\"\u003eSierra limited lifetime warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1576\" data-end=\"1579\"\u003e\n\u003ch2 data-start=\"1581\" data-end=\"1608\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1584\" data-end=\"1608\"\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"1610\" data-end=\"1648\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1614\" data-end=\"1648\"\u003eMerCruiser (GM Inline Engines)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1649\" data-end=\"1692\"\u003e\n\u003cli data-start=\"1649\" data-end=\"1670\"\u003e2.5L (4 cylinder)\u003c\/li\u003e\n\u003cli data-start=\"1671\" data-end=\"1692\"\u003e3.0L (4 cylinder)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1694\" data-end=\"1713\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1698\" data-end=\"1713\"\u003eVolvo Penta\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1714\" data-end=\"1741\"\u003e\n\u003cli data-start=\"1714\" data-end=\"1741\"\u003e3.0L 4-cylinder engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1743\" data-end=\"1772\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1747\" data-end=\"1772\"\u003eOMC \/ Cobra \/ Inboard\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1773\" data-end=\"1822\"\u003e\n\u003cli data-start=\"1773\" data-end=\"1822\"\u003eGM-based inline 4 \u0026amp; inline 6 cylinder engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1824\" data-end=\"1930\"\u003e➡️ Designed specifically for \u003cstrong data-start=\"1853\" data-end=\"1890\"\u003eGM inline marine engine platforms\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1932\" data-end=\"1935\"\u003e\n\u003ch2 data-start=\"1937\" data-end=\"1974\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1940\" data-end=\"1972\"\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1975\" data-end=\"1994\"\u003eFitment depends on:\u003c\/p\u003e\n\u003cul data-start=\"1995\" data-end=\"2068\"\u003e\n\u003cli data-start=\"1995\" data-end=\"2020\"\u003eEngine model and year\u003c\/li\u003e\n\u003cli data-start=\"2021\" data-end=\"2041\"\u003ePulley alignment\u003c\/li\u003e\n\u003cli data-start=\"2042\" data-end=\"2068\"\u003eMounting configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2070\" data-end=\"2145\"\u003e⚠️ Always confirm compatibility using engine serial number before ordering.\u003c\/p\u003e\n\u003chr data-start=\"2147\" data-end=\"2150\"\u003e\n\u003ch2 data-start=\"2152\" data-end=\"2191\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2155\" data-end=\"2191\"\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2192\" data-end=\"2235\"\u003eReplace the circulating pump if you notice:\u003c\/p\u003e\n\u003cul data-start=\"2236\" data-end=\"2411\"\u003e\n\u003cli data-start=\"2236\" data-end=\"2276\"\u003eEngine overheating at all RPM ranges\u003c\/li\u003e\n\u003cli data-start=\"2277\" data-end=\"2320\"\u003eCoolant or water leaking from weep hole\u003c\/li\u003e\n\u003cli data-start=\"2321\" data-end=\"2355\"\u003eBearing noise or pulley wobble\u003c\/li\u003e\n\u003cli data-start=\"2356\" data-end=\"2380\"\u003eReduced coolant flow\u003c\/li\u003e\n\u003cli data-start=\"2381\" data-end=\"2411\"\u003eCorrosion or internal wear\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2413\" data-end=\"2416\"\u003e\n\u003ch2 data-start=\"2418\" data-end=\"2443\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2421\" data-end=\"2443\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2444\" data-end=\"2619\"\u003e\n\u003cli data-start=\"2444\" data-end=\"2486\"\u003eVerify pulley alignment before install\u003c\/li\u003e\n\u003cli data-start=\"2487\" data-end=\"2514\"\u003eReplace mounting gasket\u003c\/li\u003e\n\u003cli data-start=\"2515\" data-end=\"2547\"\u003eInspect belts and tensioners\u003c\/li\u003e\n\u003cli data-start=\"2548\" data-end=\"2579\"\u003eTorque bolts evenly to spec\u003c\/li\u003e\n\u003cli data-start=\"2580\" data-end=\"2619\"\u003ePrime cooling system before startup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2621\" data-end=\"2624\"\u003e\n\u003ch2 data-start=\"2626\" data-end=\"2668\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2629\" data-end=\"2668\"\u003eAlternate \/ Superseded Part Numbers\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"2670\" data-end=\"2698\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2674\" data-end=\"2698\"\u003eOEM Cross References\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2699\" data-end=\"2949\"\u003e\n\u003cli data-start=\"2699\" data-end=\"2790\"\u003eMercury \/ MerCruiser: \u003cstrong data-start=\"2723\" data-end=\"2750\"\u003e65142A1, 880817, 884727\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2791\" data-end=\"2857\"\u003eVolvo Penta: \u003cstrong data-start=\"2806\" data-end=\"2817\"\u003e3854017\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2858\" data-end=\"2949\"\u003eOMC: \u003cstrong data-start=\"2865\" data-end=\"2909\"\u003e380640, 984360, 986779, 3854017, 3858340\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2951\" data-end=\"2954\"\u003e\n\u003ch3 data-start=\"2956\" data-end=\"2992\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2960\" data-end=\"2992\"\u003eAftermarket Cross References\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2993\" data-end=\"3124\"\u003e\n\u003cli data-start=\"2993\" data-end=\"3017\"\u003eMallory: \u003cstrong data-start=\"3004\" data-end=\"3015\"\u003e9-42605\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3018\" data-end=\"3036\"\u003eGLM: \u003cstrong data-start=\"3025\" data-end=\"3034\"\u003e15100\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3037\" data-end=\"3062\"\u003ePro Marine: \u003cstrong data-start=\"3051\" data-end=\"3060\"\u003e64727\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3063\" data-end=\"3124\"\u003eRedline: \u003cstrong data-start=\"3074\" data-end=\"3084\"\u003eRL3575\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3126\" data-end=\"3129\"\u003e\n\u003ch2 data-start=\"3131\" data-end=\"3148\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3134\" data-end=\"3146\"\u003eShipping\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3149\" data-end=\"3214\"\u003eShipping: Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e\n\u003chr data-start=\"3216\" data-end=\"3219\"\u003e\n\u003ch3 data-start=\"3221\" data-end=\"3248\"\u003e💡 Parts Desk Insight\u003c\/h3\u003e\n\u003cp data-start=\"3249\" data-end=\"3321\"\u003eThis is one of the \u003cstrong data-start=\"3268\" data-end=\"3309\"\u003emost commonly mis-listed parts online\u003c\/strong\u003e as a “kit.”\u003c\/p\u003e\n\u003cp data-start=\"3323\" data-end=\"3341\"\u003e👉 Key difference:\u003c\/p\u003e\n\u003cul data-start=\"3342\" data-end=\"3437\"\u003e\n\u003cli data-start=\"3342\" data-end=\"3389\"\u003e\u003cstrong data-start=\"3344\" data-end=\"3389\"\u003e18-3575 = circulating pump (engine front)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"3390\" data-end=\"3437\"\u003e\u003cstrong data-start=\"3392\" data-end=\"3437\"\u003eImpeller kits = in the drive \/ lower unit\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"3439\" data-end=\"3451\"\u003eGood bundle:\u003c\/p\u003e\n\u003cul data-start=\"3452\" data-end=\"3570\"\u003e\n\u003cli data-start=\"3452\" data-end=\"3475\"\u003eThermostat + gasket\u003c\/li\u003e\n\u003cli data-start=\"3476\" data-end=\"3507\"\u003eRaw water pump impeller kit\u003c\/li\u003e\n\u003cli data-start=\"3508\" data-end=\"3570\"\u003eFull cooling service package (high conversion on 3.0L boats)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43564241551396,"sku":"SIE-18-3575","price":217.57,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/51f7c7c8-1460-4412-8b92-1c0a8f518d39.png?v=1774159500","url":"https:\/\/marisolmarine.com\/products\/sierra-marine-water-pump-kit-sie-18-3575","provider":"Marisol Marine Company","version":"1.0","type":"link"}