Strong Compatibility: Directly replaces for 8M4004174. Sonar adapter cable works for MotorGuide Tour or Tour Pro HD+ enabled motors and provides clear 83/200 455/800 kHz HD views beneath the trolling motor. NOT compatible with Xi Series motors. Widely Fitment: Compatible with Lowrance HDS Carbon/Live, Elite Ti, Elite Ti2, Elite FS units with black 9-Pin Xsonic transducer port. Easy Installation: Installation is a breeze with its plug-and-play design. Simply plug one end of the adapter into your fish finder and the other into for Tour Series trolling motor with HD+ sonar-equipped. High Performance: IP68-rated waterproof heavy-duty composite connectors feature metal tipped to prevent sonar interference. Excellent conductivity and high sensitivity ensure a secure and stable connection and provide accurate signal transmission. Marine Grade Material: Made of premium copper, plastic and rubber materials. After rigorous testing, oil resistance, seawater resistance, waterproof, anti-rust, anti-corrosion, provide a better connection and longer service life. Sonar Adapter Cable