{"product_id":"sierra-18-2161-marine-shift-arm-for-mercruiser-stern-drive-replaces-45518a3","title":"Sierra 18-2161 Marine Shift Arm for Mercruiser Stern Drive, Replaces Mercury Marine 45518A2","description":"\u003cp\u003eThe Sierra 18-2161 is a stainless steel shift arm built for Mercruiser stern drive applications. It links the shift cable to the drive's internal shift mechanism, transferring the boat operator's shift lever input into the gear-selection linkage of the stern drive. Built to meet or exceed original equipment quality standards, the 18-2161 is manufactured as a direct-fit replacement for worn, corroded, or broken shift arms that can cause sloppy, hard, or unreliable shifting between forward, neutral, and reverse.\u003c\/p\u003e\u003cp\u003eThe shift arm is constructed from stainless steel for corrosion resistance in the marine environment. It is offered as an equivalent to Mercury Marine part numbers 45518A2 and 45518A 3, and cross-references to Evinrude\/Johnson 318944. Because shift arm geometry varies between stern drive models, confirm the part number match against your Mercruiser stern drive before installing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-2161\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Shift Arm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit Type:\u003c\/strong\u003e Universal Fit (verify part number before ordering)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.08 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 030999311658\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser stern drive\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury Marine 45518A2\u003c\/li\u003e\n\u003cli\u003eMercury Marine 45518A 3\u003c\/li\u003e\n\u003cli\u003eEvinrude\/Johnson 318944\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-2161 shift arm do?\u003c\/strong\u003e It connects the shift cable to the internal shift mechanism on a Mercruiser stern drive, transferring the shift lever's input into the drive's gear-selection linkage.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-2161 fit any Mercruiser stern drive?\u003c\/strong\u003e The Sierra 18-2161 is listed as a universal fit for Mercruiser stern drive applications, but shift arm geometry can vary by model, so check the part number against your stern drive before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does this shift arm cross-reference?\u003c\/strong\u003e The 18-2161 is equivalent to Mercury Marine 45518A2 and 45518A 3, and also cross-references to Evinrude\/Johnson 318944.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2161 a genuine Mercury Marine part?\u003c\/strong\u003e No, the 18-2161 is a Sierra-brand part manufactured to meet or exceed original equipment quality, offered as an equivalent to the Mercury Marine 45518A2 and 45518A 3 shift arms rather than a Mercury Marine branded part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-2161 shift arm made from?\u003c\/strong\u003e Stainless steel, chosen for corrosion resistance in marine stern drive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2161 shift arm weigh?\u003c\/strong\u003e 0.08 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included when I order the Sierra 18-2161?\u003c\/strong\u003e One Sierra 18-2161 stainless steel shift arm for Mercruiser stern drive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2161 work if my boat has an Evinrude or Johnson outboard instead of a Mercruiser stern drive?\u003c\/strong\u003e The Sierra 18-2161 cross-references to Evinrude\/Johnson part number 318944, so it can serve as an equivalent on applications that originally used that part number in addition to Mercruiser stern drive applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 18-2161 different from a used or salvage shift arm?\u003c\/strong\u003e The Sierra 18-2161 is a new part manufactured to meet or exceed original equipment quality standards, avoiding the wear and corrosion risk of a used shift arm pulled from another drive.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988105146587,"sku":"SIE-18-2161","price":33.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-2161_lg__88249.1558123540.500.750.jpg?v=1785188337","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2161-marine-shift-arm-for-mercruiser-stern-drive-replaces-45518a3","provider":"Good Vibes Marina","version":"1.0","type":"link"}