{"product_id":"sierra-18-2603e-lower-shift-cable-kit-xtreme-for-mercruiser-alpha-one-gen-ii-sterndrive-replaces-mercury-19543t1","title":"Sierra 18-2603E Xtreme Lower Shift Cable Kit, Replaces 19543T1, for Mercruiser Alpha One Gen II Stern Drive","description":"\u003cp\u003eThe Sierra 18-2603E is a Xtreme Lower Shift Cable Kit engineered as a direct replacement for the lower shift cable on Mercruiser Alpha One Gen II stern drives. It restores positive, precise shifting between forward, neutral, and reverse by replacing the worn factory cable assembly with a kit built to meet or exceed original equipment quality. The lower shift cable is a wear item subject to corrosion, stretching, and internal binding over time, which can produce sloppy shift feel, difficulty finding gear, or a cable that binds partway through its travel; this kit addresses that failure point directly.\u003c\/p\u003e\u003cp\u003eThis kit uses the Sierra 18-2190E shift cable as its core component. Installation requires the Sierra 18-9806E Xtreme Shift Cable Tool to properly set cable length and complete the swap; this specialized tool is not included in the kit and must be sourced separately.\u003c\/p\u003e\u003cp\u003eBecause the lower shift cable interfaces directly with the drive unit's shift mechanism, correct part selection matters: this kit is built for the Alpha I Gen II drive specifically, and is not the same kit used on Bravo drives, which use a different part number and cable. Buyers should confirm their drive is Alpha One Gen II before ordering.\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 18-2603E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Lower Shift Cable Kit (Xtreme)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mercruiser Alpha One Gen II\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShift Cable Used:\u003c\/strong\u003e 18-2190E\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Tool Required:\u003c\/strong\u003e 18-9806E (Xtreme Shift Cable Tool), sold separately\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 19543T1, 19543T2, 865436A03\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 18.5 x 1.5 x 13.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.93 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282184247\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eMercruiser Alpha One Gen II stern drive\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e19543T1\u003c\/li\u003e\n\u003cli\u003e19543T2\u003c\/li\u003e\n\u003cli\u003e865436A03\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat drive does the Sierra 18-2603E shift cable kit fit?\u003c\/strong\u003e The 18-2603E is built specifically for Mercruiser Alpha One Gen II stern drives; it is not interchangeable with kits made for Bravo drives, which use a different cable and part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does the 18-2603E replace?\u003c\/strong\u003e This Sierra kit replaces Mercury Marine OEM numbers 19543T1, 19543T2, and 865436A03.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need a special tool to install the 18-2603E?\u003c\/strong\u003e Yes, installing the 18-2603E requires the Sierra 18-9806E Xtreme Shift Cable Tool to properly set the cable length; this tool is sold separately and is not included in the kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat shift cable is included in the 18-2603E kit?\u003c\/strong\u003e The kit is built around the Sierra 18-2190E shift cable as its core component.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow big is the 18-2603E shift cable kit box?\u003c\/strong\u003e The 18-2603E ships in packaging measuring 18.5 x 1.5 x 13.5 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-2603E weigh?\u003c\/strong\u003e The Sierra 18-2603E Lower Shift Cable Kit weighs 1.93 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-2603E a genuine Sierra part or aftermarket?\u003c\/strong\u003e It is a genuine Sierra International part, manufactured to meet or exceed original equipment quality as a replacement for the Mercury Marine lower shift cable.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-2603E work on a Bravo drive?\u003c\/strong\u003e No, the 18-2603E is designed for Alpha One Gen II drives only; Bravo drives require a different lower shift cable kit with its own part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy would I need to replace the lower shift cable on my Mercruiser Alpha One Gen II?\u003c\/strong\u003e The lower shift cable wears, corrodes, or stretches over time, which causes sloppy shift feel, trouble finding gear, or binding partway through its travel; the 18-2603E kit is designed to correct that by replacing the cable assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I install the 18-2603E without the Xtreme Shift Cable Tool?\u003c\/strong\u003e The kit's instructions call for the Sierra 18-9806E Xtreme Shift Cable Tool to complete installation and correctly set cable length, so it is required to finish the job properly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-2603E?\u003c\/strong\u003e The UPC for the Sierra 18-2603E Lower Shift Cable Kit is 808282184247.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988107833563,"sku":"SIE-18-2603E","price":179.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-2603E__17095.1722512363.500.750.jpg?v=1785188544","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-2603e-lower-shift-cable-kit-xtreme-for-mercruiser-alpha-one-gen-ii-sterndrive-replaces-mercury-19543t1","provider":"Good Vibes Marina","version":"1.0","type":"link"}