Garmin

Garmin Transom/Trolling Motor Mount Dual Beam Transducer - 8 Pin

SKU: 47850 · UPC: 753759996987 · MPN: 010-10249-40
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02 · Overview

Garmin Transom/Trolling Motor Mount Dual Beam Transducer - 8 Pin — Product description

Transducer, 8-pin,200/77, DB

Upgrade your fishing setup with this reliable Garmin dual beam transducer designed specifically for transom or trolling motor mounting. Anglers who demand clear underwater visuals without the hassle of complicated setups swear by its straightforward performance. Whether you're chasing bass in shallow lakes or scanning deep reservoirs, this 8-pin powerhouse delivers consistent readings that help you locate fish faster and more accurately.

Precision Specs for Serious Fishing

This transducer packs advanced capabilities into a rugged, marine-ready design. It operates on dual frequencies to balance wide coverage for spotting structure with narrow focus for pinpoint detail. Here's a breakdown of its core specifications:

Frequency (kHz) Power Beam Width (° LF/HF) Max Depth (ft) Sensors Pins Transom Angle
77/200 500W 45/15 1,900 Depth & Temp 8 0-70°

With a generous 30-foot cable, you gain flexibility for clean routing away from noisy electronics, ensuring interference-free sonar returns. Its 500-watt power handles everything from freshwater ponds to challenging deep-water hunts.

Why This Transducer Outshines the Rest for Echo Users

Perfect as a replacement or upgrade for your echo series fishfinder, it provides wider beam coverage at 77 kHz for scouting large areas and sharper 200 kHz beams for identifying individual fish or bait schools. Real-world anglers report crisper separation in murky water compared to single-beam options, making it a game-changer for tournament pros and weekend warriors alike. The built-in temperature sensor keeps you informed on water conditions, helping predict fish behavior shifts throughout the day.

Versatile Mounting for Any Hull

Adaptable to transom angles from flat to steeply angled (0-70 degrees), this mount fits most aluminum and fiberglass boats without custom modifications. For trolling motor setups, its compact profile hugs the lower unit securely, maintaining consistent depth readings even at trolling speeds up to 10 mph. Pro tip: Position it slightly off-center from the prop wash for optimal performance, and always test in shallow water before heading offshore.

Real Fishing Advantages

  • Spot Hidden Structure: The wide 45-degree low-frequency beam reveals drop-offs, weed beds, and humps that narrower transducers miss.
  • Track Thermoclines: Layered temperature data overlays help you dial in the right depth where fish stack up.
  • All-Weather Reliability: Built tough against UV exposure, saltwater splashes, and constant vibration, it holds up season after season.
  • Quick Target ID: Narrow high-frequency beam excels at distinguishing game fish from forage in cluttered bottoms.

Pro Installation Tips for Flawless Setup

  1. Clean the transom thoroughly and mark the mounting hole using the included template for precise alignment.
  2. Drill pilot holes and secure with stainless hardware to prevent corrosion—avoid over-tightening to allow slight flex.
  3. Route the cable through existing gunwale conduits or zip-tie it neatly, keeping at least 12 inches from the motor's ignition wires.
  4. Adjust the running angle so the transducer sits parallel to the waterline at speed; fine-tune by observing the sonar display for a straight bottom line.
  5. Calibrate your fishfinder post-install to sync frequencies and sensitivity for your local waters.

Most users complete the job in under an hour, no special tools required beyond basics.

Long-Term Care to Maximize Lifespan

After each trip, rinse with fresh water to flush away salt or mud. Inspect the face for nicks or marine growth, and store dry during off-seasons. Avoid high-pressure washers directly on the ceramic element. With proper care, expect years of dependable service backed by Garmin's commitment to quality.

Frequently Asked Questions

What fishfinders is this Garmin dual beam transducer compatible with?

It's optimized for Garmin echo series fishfinders, connecting seamlessly via the 8-pin port for plug-and-play operation.

Can I use this transducer on a trolling motor?

Yes, its versatile design supports secure mounting on most trolling motor shafts, delivering stable readings while moving.

What's the difference between 77 kHz and 200 kHz modes?

77 kHz offers broader coverage for deep water and structure scanning, while 200 kHz provides detailed, high-resolution images ideal for shallow fishing.

Does it measure water temperature?

Absolutely, the integrated sensor provides accurate surface temperature readings to help track fish movements.

How deep can this 500W transducer reliably read?

It performs up to 1,900 feet in ideal conditions, though best results come in 100-800 feet for freshwater applications.

Is it suitable for saltwater use?

Designed primarily for freshwater, it handles incidental saltwater exposure well but rinse thoroughly after use to prevent buildup.

Why choose a dual beam over single frequency?

Dual beam versatility lets you switch between wide-area search and precise targeting, adapting to varied fishing scenarios on the fly.

Garmin make products that are engineered on the inside for life on the outside. We bring GPS navigation and wearable technology to the automotive, aviation, marine, outdoor and fitness markets. We believe every day is an opportunity to innovate and a chance to beat yesterday. We offer products with essential utility, leading-edge technologies, compelling features, and exceptional ease-of-use to create clear differentiators our customers appreciate and desire.

Garmin 101024940 Attributes

  • Mounting Location: Transom Mount
  • Number Of Pins: 8 Pin
  • Depth: 1900 Feet
  • Power Rating: 500 Watt
  • Frequency Range: 77/ 200 kHz
  • Supported Angle: 0 To 70 Degree Transom Angle
  • Cable Length: 30 Feet

Garmin 101024940 Features & Benefits

  • Dual Beam Transducer Replaces The One Provided With Your Echo ™ Series Fishfinder
  • 500 Watt 8-Pin Transducer, It Has An Operating Frequency Of 77/200 Kilohertz
  • Mounts On A 0 To 70 Degree Transom
  • Transducer Kit Features Installation Instructions
  • Limited 1 Year Warranty

Garmin 101024940 Installation Instructions

Garmin 101024940 Warranties


Dual Beam Transom Mount
500W

Freshwater Transducer for use w/echo Fishfinder Series

Max Depth - 1,900'
Supported Deadrise/Transom Angles - 0-70° Transom

This dual beam beam mounted transducer replaces the transducer that comes with the Echo series fish finder. A 500 W 8-pin sensor has an operating frequency of 77/200 kHz. A kind of ...
SKU: NVN-47850
MPN: 010-10249-40
UPC: 753759996987
03 · The numbers

Technical specifications

BrandGarmin
ModelGarmin Transom/Trolling Motor Mount Dual Beam Transducer - 8 Pin
SKU / MFR#47850

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04 · Before you buy

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05 · Customer voices

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