{"product_id":"merc-257","title":"Mercury Quicksilver Outboard Aluminum Anode Set - 97-42121Q02","description":"\u003cp\u003eThe Mercury MerCruiser Quicksilver \u003cstrong\u003e42121Q02\u003c\/strong\u003e is a genuine Mercury Marine OEM \u003cstrong\u003ealuminum sacrificial anode set\u003c\/strong\u003e used on select small Mercury, Mariner, and Force outboard lower units. These square-style anodes mount at the gearcase\/cavitation plate area where the factory parts diagram calls for \u003cstrong\u003e42121Q02\u003c\/strong\u003e, helping protect the lower unit from galvanic corrosion by sacrificing the anode material before the gearcase casting is attacked.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Mercury Marine factory OEM aluminum anode set.\u003c\/li\u003e\n\u003cli\u003eMercury\/Quicksilver part number: \u003cstrong\u003e42121Q02\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eCommon formatted reference: \u003cstrong\u003e97-42121Q02\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eFactory listing identifies this as an \u003cstrong\u003eANODE (ALUM) @2\u003c\/strong\u003e set.\u003c\/li\u003e\n\u003cli\u003eKit includes \u003cstrong\u003etwo aluminum anodes\u003c\/strong\u003e for compatible lower-unit mounting locations.\u003c\/li\u003e\n\u003cli\u003eApproximate anode dimensions: \u003cstrong\u003e1.66 in. L x 1.10 in. W x 0.42 in. H\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eApproximate mounting hole diameter: \u003cstrong\u003e0.28 in.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eUsed on select small outboard gearcases where the Mercury parts diagram calls for this anode set.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eApplication Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eCommon where-used application groups include select Mercury, Mariner, and Force small outboards by serial number and gearcase configuration, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercury \/ Mariner 6 HP\u003c\/strong\u003e applications where specified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercury \/ Mariner 8 HP\u003c\/strong\u003e applications where specified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercury \/ Mariner 9.9 HP\u003c\/strong\u003e applications where specified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercury \/ Mariner 10 HP XR10, Marathon, SeaPro, and Viking\u003c\/strong\u003e applications where specified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercury \/ Mariner 13.5 HP FourStroke\u003c\/strong\u003e applications where specified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercury \/ Mariner 15 HP\u003c\/strong\u003e applications where specified\u003c\/li\u003e\n\u003cli\u003eSelect \u003cstrong\u003eForce 9.9 HP and 15 HP\u003c\/strong\u003e applications where specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUse this anode set only where the Mercury\/Mariner\/Force lower-unit parts diagram specifically calls for \u003cstrong\u003e42121Q02\u003c\/strong\u003e or \u003cstrong\u003e97-42121Q02\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFitment Notice\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eConfirm fitment by outboard serial number, horsepower, gearcase style, anode shape, mounting hole location, and exact lower-unit diagram before ordering. Small Mercury and Mariner outboards can use different anodes depending on model year, gearcase casting, freshwater\/saltwater package, and lower-unit configuration.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplace sacrificial anodes when they are heavily pitted, loose, missing, cracked, or more than approximately \u003cstrong\u003e50% consumed\u003c\/strong\u003e. Anodes should also be replaced if they are painted, insulated by corrosion buildup, or no longer making clean metal-to-metal contact with the gearcase. Worn anodes reduce corrosion protection for the lower unit and nearby submerged metal parts.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eRemove the old anodes and clean the mounting surface before installation so the new anodes make direct electrical contact with the gearcase. Do not paint anodes. Paint, sealant, heavy corrosion, or poor hardware contact can prevent the anode from working properly. Inspect the mounting screw, threaded hole, cavitation plate area, and surrounding gearcase casting while the anodes are removed.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAlternate\/Superseded Part Numbers\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e42121Q02\u003c\/strong\u003e — Mercury\/Quicksilver aluminum anode set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e97-42121Q02\u003c\/strong\u003e — formatted Mercury\/Quicksilver anode reference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e97-42121A1\u003c\/strong\u003e — earlier Mercury reference; verify by serial number and diagram\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e42121A2\u003c\/strong\u003e — earlier Mercury reference; verify by serial number and diagram\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGLM 12907\u003c\/strong\u003e — aftermarket cross-reference; verify by application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eParts Desk Insight\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eAnodes protect only when they are the correct material, shape, and mounting style for the gearcase. Aluminum anodes are commonly used across fresh, brackish, and saltwater environments, but the part still needs to match the exact lower-unit diagram. Always leave the anode bare and clean so it can sacrifice properly before corrosion attacks the gearcase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563858133028,"sku":"42121Q02","price":23.1,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/b112a463-a7ba-4855-b3e6-3e30a6134793.png?v=1781134307","url":"https:\/\/marisolmarine.com\/products\/merc-257","provider":"Marisol Marine Company","version":"1.0","type":"link"}