Navico Replacement Top Mount f/HDI 83/200/455/800 TM

Upgrade your fishing setup with confidence using this precision-engineered replacement top mount designed specifically for Lowrance HDI skimmer transducers. Whether you're dealing with wear from constant saltwater exposure or simply need a fresh install after years of reliable service, this mount restores the optimal positioning for crystal-clear DownScan Imaging (DSI) performance on the water.

Perfect Fit for Your Lowrance DSI Setup

Crafted to seamlessly replace the top mount on HDI 83/200 kHz and 455/800 kHz skimmer transducers, this hardware ensures your DSI sonar maintains peak accuracy. It's tailored for transom-mounted installations, keeping your transducer at the ideal depth and angle to capture detailed underwater structures, fish arches, and bottom contours without interference. Anglers chasing bass in shallow lakes or offshore species know that even a slight misalignment can mean missing the bite—this mount gets you back on target fast.

Built Tough for Real-World Boating Demands

Marine environments are unforgiving, with constant vibration, UV rays, and corrosive saltwater testing every component. This black and silver mount stands up to it all, using high-grade materials that resist cracking, fading, or loosening over time. Unlike generic aftermarket parts that might compromise your readings, this genuine replacement delivers the durability Lowrance anglers expect, so you can focus on the fish instead of frequent fixes.

Effortless Installation for Quick Turnarounds

No need for specialized tools or a full-day project. Align the mount with your existing transom bracket, secure with standard stainless steel hardware (recommended for corrosion resistance), and you're ready to launch. Pro tip: Clean the mounting surface thoroughly and apply marine-grade sealant around the edges to prevent water ingress. Most users complete the swap in under 30 minutes, minimizing downtime before your next outing. Always double-check your transducer cable routing to avoid strain that could lead to signal loss.

Enhance Your On-Water Performance

A properly mounted DSI transducer unlocks the full potential of your Lowrance fishfinder, revealing separated fish targets from structure and delivering hyper-detailed side-to-side coverage. This mount corrects common issues like transducer lift in rough chop or drift from loose fittings, ensuring consistent high-definition images that help you pinpoint hotspots. Boat owners upgrading from older DSI units or repairing storm-damaged gear rave about the renewed clarity it brings to their screens.

Long-Term Reliability and Peace of Mind

Invest in hardware that matches the innovation behind Lowrance's 60-year legacy in sonar tech. Regular inspections—checking for loose screws or hull abrasion—extend its life even further. Pair it with anti-fouling transducer paint for growth-free operation in warm waters, keeping your readings sharp season after season.