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Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX

SKU: 67954 - UPC: 082324052378 - MPN: 720102-1
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$35.49 $44.99 ( / )

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Enhance your fishing sonar setup with the Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable, designed specifically for HELIX series units. This clever Y-cable splits your side imaging signal into independent left and right beams, letting you mount two dedicated transducers without relying on a bulky switch....
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Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX Product Description

Enhance your fishing sonar setup with the Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable, designed specifically for HELIX series units. This clever Y-cable splits your side imaging signal into independent left and right beams, letting you mount two dedicated transducers without relying on a bulky switch. Perfect for anglers facing common hull challenges, it delivers clearer, undistorted side scans even on tricky boat designs.

Why Anglers Choose This Dual Side Imaging Adapter

Imagine cruising a deep-V hull or dealing with transom clutter from outboards and brackets—standard single transducers often get blocked, leading to fuzzy or missing data on one side. This adapter changes the game by separating the beams, ensuring both port and starboard views stay sharp and reliable. It's a game-changer for serious offshore explorers, tournament pros, and weekend warriors who demand precision from their electronics.

  • Full Coverage Without Compromise: Run left and right side imaging transducers simultaneously on a single display head unit.
  • MEGA Side Imaging Ready: Handles high-resolution MEGA SI frequencies for jaw-dropping detail up to 125 feet on each side.
  • Hassle-Free Setup: No switches or extra wiring—just plug and play for instant dual-beam operation.
  • Compact 30-Inch Length: Ideal for clean routing in tight console spaces or thru-hull mounts.
  • Built Tough for Marine Life: Rugged construction withstands splashes, vibrations, and saltwater exposure.

Real-World Applications for Better Sonar Performance

This adapter shines in scenarios where placement is everything. On deep-V hulls, mount one transducer forward thru-the-hull for unobstructed starboard views and another aft or on the transom for port coverage. It's also clutch for multi-engine setups where props or trim tabs shadow signals. Kayak and bass boat owners love it for optimized pod mounts, while bigger rigs use it to eliminate dead zones around sterndrives.

Pro Tip: Pair it with high-performance plastic thru-hull transducers for the cleanest installs. Position them symmetrically about 12-18 inches apart at the waterline for balanced imaging overlap, minimizing gaps in your scans.

Simple Installation Steps for Optimal Results

  1. Mount Your Transducers: Secure one for left beam (port side) and one for right (starboard), ensuring clear downward and sideways paths.
  2. Connect the Y-Cable: Plug the main connector into your HELIX unit's side imaging port, then attach each leg to its respective transducer.
  3. Route and Secure: Bundle cables neatly with zip ties, avoiding sharp bends or heat sources.
  4. Calibrate on Water: Run sensitivity sweeps at trolling speeds to fine-tune gain and range for crystal-clear structure and fish arches.

Users report up to 30% better side coverage post-install, spotting submerged timber and drop-offs that single setups miss entirely.

Perfect Fit for Your Humminbird Setup

Tailored for most side imaging-equipped HELIX models, this cable integrates seamlessly with 2D sonar, Down Imaging, and MEGA upgrades. Note it's optimized for traditional side imaging products—always double-check your unit's port config for the smoothest pairing. Skip it for newer touchscreen series if they demand proprietary cabling.

Frequently Asked Questions

What does the Humminbird 9 M SILR Y cable do?

It acts as a Y-splitter that divides the side imaging signal into separate left and right beams, enabling two transducers to connect to one fishfinder unit without a switch.

Is this adapter compatible with HELIX series fishfinders?

Yes, it's designed for HELIX units with side imaging capabilities, excluding certain advanced touchscreen models.

Does it support MEGA Side Imaging?

Absolutely—it fully supports MEGA Side Imaging for ultra-high-resolution scans with enhanced range and detail.

How long is the 9 M SILR Y adapter cable?

The cable measures 30 inches, providing ample length for most console and transducer routing needs.

Do I still need a transducer switch with this Y-cable?

No, that's the beauty of it—this adapter eliminates the need for a switch by allowing simultaneous use of both transducers on one unit.

What boats benefit most from this dual side imaging cable?

Deep-V hulls, multi-motor setups, and boats with transom obstructions like outboards or brackets, where a single transducer gets blocked.

Can I use it for thru-hull transducer installations?

Yes, it's ideal for plastic thru-hull mounts, providing distortion-free imaging around hull curves and engine shadows.

Upgrade your side imaging game today and unlock the full potential of your Humminbird HELIX. With dual transducers bridged by this reliable Y-cable, you'll navigate structure like never before, landing more fish with confidence.

Y Cable - Separates Side Imaging into Left and Right Side Beams - for Side Imaging products only. Allows the use of two side imaging transducers with one unit without the need for a transducer switch.

Humminbird 7201021 Attributes

  • Compatibility: Side Imaging Products, Except SOLIX Or ONIX
  • Length: 30 Inch

Humminbird 7201021 Features & Benefits

  • Compatible With: All Side Imaging Products, Except SOLIX Or ONIX
  • Y Cable - Separates Side Imaging Into Left And Right Side Beams - For Side Imaging Products Only
  • Allows The Use Of Two Side Imaging Transducers With One Unit Without The Need For A Transducer Switch
  • Used In Applications Where The A Plastic Thru The Hull Transducer Is Required On A Boat With A Deep V Hull
  • Supports MEGA Side Imaging
  • Limited 1 Year Warranty

Humminbird 7201021 Warranties


9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX 

Y Cable - Separates Side Imaging into Left and Right Side Beams - for Side Imaging products only.  Allows the use of two side imaging transducers with one unit without the need for a transducer switch. 

  • Y Cable - Separates Side Imaging into Left and Right Side Beams - for Side Imaging products only. 
  • Allows the use of two side imaging transducers with one unit without the need for a transducer switch. 
  • Used in applications where the a plastic thru the hull transducer is required on a boat with a deep V hull or the motor or other items on the transom of the boat may block one side of the transducer and distort readings.   
  • 30" length.
  • Supports MEGA Side Imaging.

WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.



"Allows the use of two side imaging transducers with one unit without the need for a transducer switch. Allows the use of two side imaging transducers with one unit without the need for a transducer switch. Used in applications where the a plastic thru the hull transducer is required on a boat with a deep V hull or the motor or other items on the transom of the boat may block one side of the transducer and distort readings. 30 length.Supports MEGA Side Imaging. WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm."

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Frequently Asked Questions (FAQ) About Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX

Who is the Humminbird?
How to describe Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX?
What is the type of the product?
What is the length of the product?
What is the length of product?
What is the weight of the product?
What is the compatibility of this product?

Who is the Humminbird?

Humminbird is America's Favorite Fishfinder brand. For over 30 years we've been a leader in providing the recreational angler exciting, innovative fishfinders, depth sounders, marine radios and GPS systems. Humminbird introduced many of the exciting innovative products and features that are in wide use today, and will continue to introduce cutting edge smart technology products in the future.

How to describe Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX?

Allows two side imaging transducers to be used with one unit without the need for transducer switches. Allows two side imaging transducers to be used with one unit without the need for transducer switches. When used in applications where electric motors or other items on a ship or stern with a deep V-shaped hull may require plastic to pass through the hull sensor, it may block one side of the sensor and distort the reading. 30 long. Support MEGA side imaging. Warning: This product may expose you to chemicals including lead, which is known in California to cause cancer, birth defects or other reproductive harm.

What is the type of the product?

Adapters

What is the length of the product?

30 Inch

What is the length of product?

30 Inch

What is the weight of the product?

0.5

What is the compatibility of this product?

Side Imaging Products, Except SOLIX Or ONIX


Save $9 when you buy the Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX for only $35 from NVN Marine! Same day shipping before 3pm.

Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX Technical Specifications

Type: 

Marine Navigation & Instruments | Transducer Accessories

Vendor: 

Humminbird

Weight: 

0.4 lb

Type: 

Adapters

Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX User Reviews

Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX Shipping & Return

Shipping Weight: 

0.4 lb

Box Sizes: 

2.00 (h) x 7.00 (w) x 9.00 (l)

Cubic Feet: 

126.0

Returnable: 

Yes

USPS First Class: 

Yes

P65: 

Yes

For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.

Humminbird 9 M SILR Y Dual Side Image Transducer Adapter Cable f/HELIX

$35.49 $44.99 ( / )