{"product_id":"27-858524-mercury-mercruiser-water-pump-gasket-genuine-quicksilver-oem-part","title":"27-858524 Mercury MerCruiser Water Pump Gasket | Genuine Quicksilver OEM Part","description":"\u003cp\u003e\n 🔧 Product Description\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Genuine Quicksilver Water Pump Gasket - Part Number: 27-858524\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n A genuine Quicksilver water pump gasket used in selected MerCruiser MC-1, R, MR and Alpha One sterndrive water pump assemblies, plus selected Mercury \/ Mariner outboard lower-unit water pump applications. This gasket seals the water pump housing \/ face plate area and is an important replacement component during impeller, water pump housing or lower-unit service.\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n ⚙️ Key Features\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Genuine Quicksilver OEM water pump gasket\n\u003c\/p\u003e\n\u003cp\u003e\n • Correct Mercury part number 27-858524\n\u003c\/p\u003e\n\u003cp\u003e\n • Used in MC-1, R, MR and Alpha One drive-mounted water pump assemblies\n\u003c\/p\u003e\n\u003cp\u003e\n • Also used across selected Mercury \/ Mariner outboard lower-unit water pumps\n\u003c\/p\u003e\n\u003cp\u003e\n • Replaces multiple earlier Mercury water pump gasket references\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 🔄 Supersession \u0026amp; Cross Reference\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n OEM Supersession Chain:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • 27-858524 → Supersedes 27-85609B1\n\u003c\/p\u003e\n\u003cp\u003e\n • 27-85609B1 → Supersedes 27-856091\n\u003c\/p\u003e\n\u003cp\u003e\n • 27-856091 → Supersedes 27-85609\n\u003c\/p\u003e\n\u003cp\u003e\n • 27-85609 → Related to \/ replaces 27-32434 and 27-30604 where specified\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n OEM \/ Related Numbers:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • 27-858524\n\u003c\/p\u003e\n\u003cp\u003e\n • 858524\n\u003c\/p\u003e\n\u003cp\u003e\n • 27858524\n\u003c\/p\u003e\n\u003cp\u003e\n • 27-85609B1\n\u003c\/p\u003e\n\u003cp\u003e\n • 85609B1\n\u003c\/p\u003e\n\u003cp\u003e\n • 27-856091\n\u003c\/p\u003e\n\u003cp\u003e\n • 856091\n\u003c\/p\u003e\n\u003cp\u003e\n • 27-85609\n\u003c\/p\u003e\n\u003cp\u003e\n • 85609\n\u003c\/p\u003e\n\u003cp\u003e\n • 27-32434\n\u003c\/p\u003e\n\u003cp\u003e\n • 32434\n\u003c\/p\u003e\n\u003cp\u003e\n • 27-30604\n\u003c\/p\u003e\n\u003cp\u003e\n • 30604\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Aftermarket \/ Verified Equivalents:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Sierra: 18-2915\n\u003c\/p\u003e\n\u003cp\u003e\n • GLM: 31020\n\u003c\/p\u003e\n\u003cp\u003e\n • Mallory: 9-60035\n\u003c\/p\u003e\n\u003cp\u003e\n • EMP: 27-00672\n\u003c\/p\u003e\n\u003cp\u003e\n • MC47-27-32434 related aftermarket reference\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 🚤 Compatibility\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Commonly used on:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser MC-1 \/ R \/ MR \/ Alpha One drive-mounted water pump assemblies\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser Alpha One-SS water pump applications\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury \/ Mariner lower-unit water pump assemblies where 27-858524 is specified\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Typically suits:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Drive \/ transom models:\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser MC-1 with flush screw - serial 2495186 to 2763441\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser MC-1 without flush screw - serial 2763442 to 6854392\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser MR \/ Alpha One - serial 6854393 to 0D469858\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser R \/ MR \/ Alpha One Sterndrive - 1983-1990, serial 6225577 to 0F386995\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser R \/ MR \/ Alpha One Transom Assembly - 1983-1990, serial 6216687 to 0F386995\n\u003c\/p\u003e\n\u003cp\u003e\n • MerCruiser 1970-2006 MC-1, R \/ MR \/ Alpha One and Alpha One-SS water pump applications where this gasket is specified\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury \/ Mariner outboard models:\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 4-cylinder 75HP - 80HP outboards, 1970-1980 \/ 1982-2006 application range where 27-858524 is specified\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 6-cylinder 90HP - 115HP outboards, 1970-1980 \/ 1982-2006 application range where 27-858524 is specified\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury V6 135HP - 220HP outboards, 1970-1980 \/ 1982-2006 application range where 27-858524 is specified\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 110 Jet 2.5L - serial 1B690542 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 140 Jet - serial 0G960500 to 0T178499\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 150 Pro XS 2.5L - serial 1B690542 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 175 Pro XS 2.5L - serial 1B516339 and up\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Drive Type: MerCruiser MC-1 \/ R \/ MR \/ Alpha One \/ Alpha One-SS\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine Type: Mercury \/ Mariner outboard and MerCruiser sterndrive water pump applications\n\u003c\/p\u003e\n\u003cp\u003e\n • System Type: Lower-unit \/ drive-mounted water pump gasket\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 🔌 Function\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n The gasket seals the water pump housing and face plate area so the impeller can draw and pressurise cooling water without leakage or pressure loss.\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Common signs of failure:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Weak tell-tale or reduced water pressure\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine overheating after water pump service\n\u003c\/p\u003e\n\u003cp\u003e\n • Water pump housing leakage\n\u003c\/p\u003e\n\u003cp\u003e\n • Gasket torn, crushed or missing during impeller replacement\n\u003c\/p\u003e\n\u003cp\u003e\n • Poor cooling despite a new impeller\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 📦 Condition\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Genuine Quicksilver part\n\u003c\/p\u003e\n\u003cp\u003e\n • Brand new\n\u003c\/p\u003e\n\u003cp\u003e\n • Supplied in original or equivalent packaging\n\u003c\/p\u003e\n","brand":"Quicksilver","offers":[{"title":"Default Title","offer_id":53388126552356,"sku":"745061442283","price":7.75,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_76e89a01-fc7e-4cb1-9a8c-c1dc6bb2e661.jpg?v=1777211511","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/27-858524-mercury-mercruiser-water-pump-gasket-genuine-quicksilver-oem-part","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}