Tech Specs
In The Box
Power cable
Bail mount with knobs
Protective sun cover
Trim caps
8-pin transducer to 12-pin sounder adapter cable
Hardware
Documentation
Manual & Warranty
Do you have an old GPS unit lying around? The GPS Nation Trade In and Up program is a great way to trade in your old and used GPS for credit towards a new GPS. The choice is entirely yours! We’ve made the process simple and streamlined. Follow these simple steps, and you will be on your way to receiving credit towards your brand new GPS!
1. Get a quote
To get your free quote, provide your GPS type, manufacturer, model, and condition. Within 24 hours, you will receive a quote for the trade-in value of your current product. The GPS trade-in/trade-up form is at the bottom of this page.
2. Ship your product(s) for trade
After accepting our offer, pack your product(s) safely and ship them to us using the pre-paid shipping label provided to you. We will provide a confirmation email when your trade-in arrives at our warehouse. You have 30 days from the date you complete your on-line trade to ship the product to GPS Nation.
3. Make your purchase
Once we receive your product at our warehouse and we validate the stated condition, we will send you a confirmation email. If you elect to receive credit towards a new GPS at gpsnation.com, your store credit will be issued, and you are free to make your purchase.
Reviews
Ask a Question
Tech Specs
In The Box
Power cable
Bail mount with knobs
Protective sun cover
Trim caps
8-pin transducer to 12-pin sounder adapter cable
Hardware
Documentation
Manual & Warranty
Trade-In
Do you have an old GPS unit lying around? The GPS Nation Trade In and Up program is a great way to trade in your old and used GPS for credit towards a new GPS. The choice is entirely yours! We’ve made the process simple and streamlined. Follow these simple steps, and you will be on your way to receiving credit towards your brand new GPS!
1. Get a quote
To get your free quote, provide your GPS type, manufacturer, model, and condition. Within 24 hours, you will receive a quote for the trade-in value of your current product. The GPS trade-in/trade-up form is at the bottom of this page.
2. Ship your product(s) for trade
After accepting our offer, pack your product(s) safely and ship them to us using the pre-paid shipping label provided to you. We will provide a confirmation email when your trade-in arrives at our warehouse. You have 30 days from the date you complete your on-line trade to ship the product to GPS Nation.
3. Make your purchase
Once we receive your product at our warehouse and we validate the stated condition, we will send you a confirmation email. If you elect to receive credit towards a new GPS at gpsnation.com, your store credit will be issued, and you are free to make your purchase.
Overview
Garmin ECHOMAP Ultra 2 166sv Chartplotter Without Transducer (010-03386-00)
Introduction
The Garmin ECHOMAP Ultra 2 166sv is designed for anglers and boaters who demand exceptional screen clarity, advanced navigation tools, and the flexibility to choose their own sonar configuration. Built around a stunning 16-inch Full HD display, this chartplotter delivers outstanding visibility and responsiveness, making it easier to interpret sonar data, monitor navigation information, and manage fishing activities on the water.
As part of Garmin's premium ECHOMAP Ultra 2 series, the 166sv supports the complete lineup of LiveScope™ live-scanning sonar products, Ultra High-Definition scanning sonar, and CHIRP traditional sonar when paired with compatible transducers. Combined with advanced networking, voice control, and mapping capabilities, it offers a highly expandable platform for serious fishing and navigation applications.
Whether upgrading an existing marine electronics setup or creating a fully customized fishing system, the ECHOMAP Ultra 2 166sv delivers the performance and flexibility needed for demanding environments.
Key Features
Large 16-Inch Full HD Display
- High-resolution 16-inch touchscreen display with exceptional brightness and clarity.
- Keyed assist controls provide dependable operation in all marine conditions.
- Large screen allows simultaneous viewing of charts, sonar, and navigation information.
Flexible Sonar Support
- Compatible with the complete Garmin LiveScope™ sonar lineup.
- Supports Ultra High-Definition ClearVü™ and SideVü™ scanning sonar systems.
- Compatible with Garmin CHIRP traditional sonar when connected to a suitable transducer.
- Allows users to customize their sonar setup to match specific fishing needs.
HDMI Output for Screen Sharing
- HDMI output supports connection to external displays and televisions.
- Share sonar images, charts, and navigation screens with crew members.
- Ideal for larger boats and multi-display installations.
Bluetooth® Voice Control
- Built-in Bluetooth® technology enables hands-free operation.
- Control compatible features using voice commands.
- Supports functions such as Force® trolling motor modes, favorite keys, and sonar controls.
Advanced Mapping Compatibility
- Supports Garmin Navionics+™ mapping.
- Compatible with Garmin Navionics Vision+™ premium mapping upgrades.
- Provides access to detailed charts, depth contours, and navigation data.
Wireless Networking
- Share sonar information, routes, and waypoints with compatible ECHOMAP Ultra 2 and UHD2 chartplotters.
- Simplifies onboard data management.
- Enhances situational awareness across multiple displays.
Performance Insights
The ECHOMAP Ultra 2 166sv is engineered to deliver exceptional navigation and sonar performance while offering maximum system flexibility. Its large Full HD display provides excellent detail and readability, helping users quickly interpret sonar data and navigation information even in bright sunlight.
Multi-band GPS technology improves positioning accuracy, making waypoint marking, route creation, and navigation more precise. The chartplotter's compatibility with Garmin's most advanced sonar technologies enables anglers to create a customized fish-finding system that meets their specific requirements.
Wireless networking further enhances performance by allowing multiple compatible chartplotters to share critical information such as sonar data, routes, and waypoints throughout the vessel.
Usage Instructions
Install the ECHOMAP Ultra 2 166sv using the included bail mount and connect any compatible Garmin sonar transducer or LiveScope™ system according to Garmin installation guidelines. Configure navigation, sonar, and chart settings based on your boating and fishing preferences.
Pair the chartplotter with the ActiveCaptain® app to receive software updates, access Garmin Quickdraw™ Community data, and utilize screen recording features. Connect compatible Garmin marine accessories such as Force® trolling motors, heading sensors, autopilots, and Fusion-Link™ audio systems through NMEA 2000® networking and wireless connectivity.
Use Bluetooth® voice commands for convenient hands-free control while focusing on fishing and navigation.
Design & Construction
Built for demanding marine environments, the ECHOMAP Ultra 2 166sv combines a rugged design with advanced technology. The 16-inch Full HD display delivers exceptional visibility while the keyed assist controls ensure reliable operation in rough conditions and wet environments.
The adjustable bail mount allows users to position the display for optimal viewing, while HDMI output and wireless networking provide extensive connectivity options. The chartplotter's modular design makes it an excellent choice for anglers who want the freedom to select and expand their sonar system over time.
Design Highlights
- 16-inch Full HD touchscreen display
- Keyed assist controls
- LiveScope™ sonar compatibility
- Support for Ultra High-Definition scanning sonar
- Support for Garmin CHIRP traditional sonar
- HDMI output for external display connectivity
- Bluetooth® voice control capability
- Multi-band GPS positioning technology
- Wireless networking support
- NMEA 2000® network compatibility
- ActiveCaptain® app integration
- Force® trolling motor compatibility
- Screen recording functionality
- Adjustable bail mount with tilt adjustment
- Expandable and customizable sonar system support
Final Verdict
The Garmin ECHOMAP™ Ultra 2 166sv Without Transducer is an outstanding choice for anglers who want a large-screen chartplotter with advanced navigation features and complete flexibility in selecting their sonar equipment. Its impressive 16-inch Full HD display, LiveScope™ compatibility, Bluetooth® voice control, HDMI screen sharing, and multi-band GPS provide a powerful platform for building a customized fishing and navigation system.
Whether you're upgrading an existing sonar setup or designing a premium marine electronics package from the ground up, the ECHOMAP Ultra 2 166sv delivers exceptional performance, expandability, and connectivity. For serious anglers seeking one of Garmin's most capable chartplotter platforms, this model offers the technology and flexibility needed to elevate every fishing trip.







