{"product_id":"merc-54","title":"Mercury Quicksilver Upper Water Pump Gasket 194541 – 40–60 HP 2-Stroke Outboard","description":"\u003ch2\u003eMercury \/ Quicksilver Upper Water Pump Gasket 194541\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 194541  |  \u003cstrong\u003eService Format:\u003c\/strong\u003e 27-194541  |  \u003cstrong\u003eGTIN:\u003c\/strong\u003e 745061127340\u003c\/p\u003e\n\n\u003cp\u003eGenuine Mercury \/ Quicksilver OEM upper water pump gasket for selected Mercury and Mariner outboard lower-unit water pump assemblies. This gasket installs at the upper joint in the water-pump stack, sealing between the pump body and the mating surface above it. Its opening pattern and thickness are matched to the specific pump body and cooling passages in these 3-cylinder 2-stroke outboards — a generic substitute can interfere with sealing and reduce the pump's cooling flow.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Mercury \/ Quicksilver\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 194541\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eService Format:\u003c\/strong\u003e 27-194541\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Upper water pump gasket\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Lower-unit water pump \/ outboard cooling circuit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~0.02 kg (0.04 lb)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGTIN \/ UPC:\u003c\/strong\u003e 745061127340\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupersedes:\u003c\/strong\u003e 19454\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent OEM Number:\u003c\/strong\u003e 194541 (27-194541)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSierra Cross-Reference:\u003c\/strong\u003e 18-2593\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFitment must be confirmed by exact horsepower, model, and serial number.\u003c\/strong\u003e Mercury used several similar upper and lower gaskets in these pump assemblies — selecting by shape alone is not reliable. Always verify against the Mercury parts diagram for your engine before ordering.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMercury \/ Mariner 40 HP 3-cylinder 2-stroke (selected serial ranges)\u003c\/li\u003e\n  \u003cli\u003eMercury \/ Mariner 45 HP 3-cylinder 2-stroke (selected serial ranges)\u003c\/li\u003e\n  \u003cli\u003eMercury \/ Mariner 50 HP 3-cylinder 2-stroke (selected serial ranges)\u003c\/li\u003e\n  \u003cli\u003eMercury \/ Mariner 55 HP 3-cylinder 2-stroke (selected serial ranges)\u003c\/li\u003e\n  \u003cli\u003eMercury \/ Mariner 60 HP 3-cylinder 2-stroke (selected serial ranges)\u003c\/li\u003e\n  \u003cli\u003eSelected Jet and BigFoot configurations — verify by serial-number parts diagram\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMercury parts listings confirm 194541 in 55 HP, 60 HP, and related 3-cylinder water-pump and gasket assemblies.\u003c\/p\u003e\n\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAny time the water-pump housing is removed for impeller, pump-body, or lower-unit service\u003c\/li\u003e\n  \u003cli\u003eGasket is flattened, torn, hardened, or shows any sign of previous compression set\u003c\/li\u003e\n  \u003cli\u003eGasket material is contaminated with fuel, oil, or coolant\u003c\/li\u003e\n  \u003cli\u003eBest practice: replace every gasket in the pump stack during each service — do not reuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThoroughly clean all mating surfaces before fitting the new gasket\u003c\/li\u003e\n  \u003cli\u003eInstall per the applicable Mercury service manual — orientation and sealing-surface prep are critical\u003c\/li\u003e\n  \u003cli\u003eMercury diagrams show 194541 used together with lower gasket 19701 \/ 8M0224241 in applicable assemblies — replace both as a set\u003c\/li\u003e\n  \u003cli\u003eInspect the pump body, impeller, water-tube seal, key, and fasteners while the pump is disassembled\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Parts \u0026amp; Service Items\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/mercury-water-pump-impeller-19453t\"\u003eMercury Quicksilver Water Pump Impeller 19453T – 30–60 HP \u0026amp; Force 75 HP\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/merc-217\"\u003eMercury Mariner Quicksilver Water Tube Seal \/ Grommet 38452\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/mercury-water-pump-base-face-plate-gasket-27-39625\"\u003eMercury Water Pump Base-to-Face-Plate Gasket 27-39625\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/merc-269\"\u003eMercury Quicksilver Water Pump Cover-to-Face-Plate Gasket 43033\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/merc-761\"\u003eMercury Water Pump-to-Gear-Housing Gasket 27-85610\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e Replace 194541 as part of a complete water-pump service — not as a stand-alone repair. The upper gasket is inexpensive compared to the labour involved in a second lower-unit teardown, so replacing all gaskets, the impeller, and seals in one go is always the smarter call.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon customer issue:\u003c\/strong\u003e Ordering by horsepower or visual match instead of the parts diagram. Mercury used multiple gasket designs across overlapping HP ranges and serial runs, and they can look nearly identical. An incorrect gasket may not seal the cooling passages properly, leading to reduced flow or a slow leak. Always verify the part number against your serial-number parts diagram before ordering.\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563839881252,"sku":"194541","price":10.15,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/6bb7695b-1e72-42bf-97b7-5b542d793d67.png?v=1788585948","url":"https:\/\/marisolmarine.com\/products\/merc-54","provider":"Marisol Marine Company","version":"1.0","type":"link"}