Specific Application Part Number: 1852086. The MKR-MDI-2 Adapter Cable is compatible with Humminbird HELIX 7 G3, G3N, G4 and G4N models.
Strong Functions The 1852086 Transducer Adapter Cable connects your Humminbird HELIX 7 G3 or G4 fish finder with a built-in MEGA Down lmaging transducer on your trolling motor, you'll be able to scan deeper and wider without sacrificing clarity.
Great Features The MKR-MDI-2 Adapter Cable (7-Pin) is made of high-quality rubber, plastic and steel. Marine-grade Shielded cable for crystal-clear MEGA Down Imaging sonar performance. Ensures best possible sonar presentations. Waterproof for extra dependability. With strong durability, corrosion resistance and anti-rust performance. Better quality allows the items to be used for a longer time.
Kind Tips The built-in transducer cannot supply MEGA Down Imaging to Humminbird models that do not already have the capability. If you have a G2/G2N or a G3/G3N HELIX that is not a MEGA SI or MEGA DI model, you will still get 2D CHIRP Digital Sonar from the transducer. The HELIX G2 and G2N units need to be running the latest software update to view sonar from Built-In MEGA Down Imaging motors.
100% Satisfaction Guarantee We are committed to providing excellent products and the best service for our customers. If you are not satisfied with the product, you can simply return it. We support a 30-day refund on return and a 12-month warranty.
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Kind Tips about using this cable
If you have a G2/G2N or a G3/G3N HELIX that is not a MEGA SI or MEGA DI model, you will still get 2D CHIRP Digital Sonar from the transducer.
The HELIX G2 and G2N units need to be running the latest software update to view sonar from Built-In MEGA Down Imaging motors.
Replaces for HB Helix 7 G3 G3N G4 G4N MEGA Down Imaging Adapter Cable
MKR-MDI-2 Fish Finder Adapter Cable, 1852086
Part Number: 1852086. The MKR-MDI-2 Adapter Cable is compatible with Humminbird HELIX 7 G3, G3N, G4 and G4N models.
The MKR-MDI-2 Adapter Cable (7-Pin) is made of high-quality rubber, plastic and steel. Marine-grade Shielded cable for crystal-clear MEGA Down Imaging sonar performance. Ensures best possible sonar presentations.
Waterproof for extra dependability. With strong durability, corrosion resistance and anti-rust performance.
Specific Application
Premium Performance
Strong Durability
PRODUCT DETAILS
Plug to MEGA Down Imaging Transducer
Waterproof Material for Extra Dependability
Connect to Specific Fish Finder Screen
Replaces for HB Helix 7 G3 G3N G4 G4N MEGA Down Imaging Adapter Cable
Kind Tips about using this cable
If you have a G2/G2N or a G3/G3N HELIX that is not a MEGA SI or MEGA DI model, you will still get 2D CHIRP Digital Sonar from the transducer.
The HELIX G2 and G2N units need to be running the latest software update to view sonar from Built-In MEGA Down Imaging motors.
MKR-MDI-2 Fish Finder Adapter Cable, 1852086
Part Number: 1852086. The MKR-MDI-2 Adapter Cable is compatible with Humminbird HELIX 7 G3, G3N, G4 and G4N models.
The MKR-MDI-2 Adapter Cable (7-Pin) is made of high-quality rubber, plastic and steel. Marine-grade Shielded cable for crystal-clear MEGA Down Imaging sonar performance. Ensures best possible sonar presentations.
Waterproof for extra dependability. With strong durability, corrosion resistance and anti-rust performance.
Specific Application
Premium Performance
Strong Durability
PRODUCT DETAILS
Plug to MEGA Down Imaging Transducer
Waterproof Material for Extra Dependability
Connect to Specific Fish Finder Screen
Click to Learn More Details
Click to Learn More Details
1852086 Replace for MKR-MDI-2 Adapter Cable, Fit for Humminbird Helix 7 G3 G3N G4 & G4N Fish Finder MEGA Down Imaging Adapter Cable, 30-Inch
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Additional Information
First Listed on Newegg
June 09, 2026
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Warranty, Returns, And Additional Information
Warranty
Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
