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Cable Extension Kit

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(88)
$39.99
Length5ft

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Details

Extend your power without sacrificing performance using the Newport [5ft/10ft] Trolling Motor Cable Extension Kit. Designed for seamless compatibility with all Newport trolling motors, this kit is built with 8AWG marine-grade wire for high conductivity and durability in any environment.
Whether you're reconfiguring your battery setup or simply need more reach, this kit provides everything you need for a reliable extension—pre-cut cable, ring terminals, butt connectors, and heat shrink tubing for a weather-tight seal. The heavy-duty wiring reduces voltage drop and ensures your motor performs at its best, every time you hit the water.

Warranty policy

1 Year Limited Warranty. See more details

what’s in the box?
  • 5ft Black & 5ft Red Cable or 10ft Black & 10ft Red Cable
  • 8 AWG Marine Grade: Tin coated Copper.
  • Connecting Hardware
  • 2 x Brass Bolts, 2 x Brass Tightening Nuts, 4 x Brass Washers.
  • Electrical Tape
  • Included for safety and covering the metal connections.
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Cable Extension Kit

$39.99

Customer Reviews: Cable Extension Kit

Rated 4.66 out of 5 stars based on 88 customer reviews.

57% of reviewers recommend this product.

Review summary

Reviewers highly recommend the Newport Cable Extension Kit for its heavy-duty, flexible marine-grade wiring and included brass hardware that ensure secure, waterproof connections. They consistently praise how the straightforward plug-and-play design effortlessly extends power cables to conveniently position trolling motor batteries on boats and kayaks.

Overpriced/nickled and dimed

Rating: 3 out of 5 stars

It is odd to me that the whole product came with a breaker but no on/off toggle. Everytime we stop using the product it has to be disconnected from the battery or the motor continues to draw power. Not great. Also, $80 for a piece of wire is a bit pricey. I cannot understand why the original motor only came with three feet of wire. While the motor is a nice product, a little underpowered, I felt nickled and dimed by the extension cord ...particularly when I will still have to add an on/off switch.

Performance
3 out of 5 (1 = Poor, 3 = Average, 5 = Excellent)
Environment
Saltwater

Reviewed by Jeffrey P. on August 21, 2026

Verified buyer

Does not recommend this product

Does not fit NT600

Rating: 1 out of 5 stars

Does not fit the NT600. Don’t spend $30 on shipping for it to not even work for your motor. Also it should say in the description somewhere for what motors it fits but doesn’t.

Performance
1 out of 5 (1 = Poor, 3 = Average, 5 = Excellent)
Environment
Both

Reviewed by Caitlin L. on July 30, 2026

Verified buyer

Does not recommend this product

Response from Newport: We're sorry the extension kit did not meet your expectations. We understand how frustrating it is to receive a product that isn't compatible with your setup. Thank you for your feedback regarding fitment information. We appreciate you bringing it to our attention and are always looking for ways to make product compatibility clearer for our customers.

Was not big enough...

Rating: 1 out of 5 stars

Was not big enough for my motor

Reviewed by Terry A. on July 3, 2026

Verified buyer

Does not recommend this product

Handy for if you...

Rating: 5 out of 5 stars

Handy for if you have a longer kayak and the stock wires won’t reach the front of the kayak.

Performance
5 out of 5 (1 = Poor, 3 = Average, 5 = Excellent)
Environment
Freshwater

Reviewed by Brad H. on July 1, 2026

Recommends this product

Easiest install ever!!! Cables...

Rating: 5 out of 5 stars

Easiest install ever!!! Cables are heavy duty too

Performance
5 out of 5 (1 = Poor, 3 = Average, 5 = Excellent)
Environment
Freshwater

Reviewed by Samuel B. on May 11, 2026

Verified buyer

Recommends this product

Response from Newport: Great to hear the install went smoothly for you. Glad to hear the heavy-duty cable design is hitting the mark as well. Thanks for the feedback.

Heavy duty yet flexible

Rating: 5 out of 5 stars

High quality material, very heavy duty yet flexible! Highly recommend

Performance
5 out of 5 (1 = Poor, 3 = Average, 5 = Excellent)
Environment
Freshwater

Reviewed by Michael P. on March 22, 2026

Verified buyer

Recommends this product

Response from Newport: We're glad to hear the quality and flexibility are on target. Thanks for the recommendation!

Why Marine Grade Wiring Rocks (Yer Boat)

Rating: 5 out of 5 stars

The rubber-like flexibility of this electrical wire is far better on boats than the stiff construction alternative from Lowes/Home Depot. (see photos). The shrink-sealed fittngs on each end, and the connector hardware are also top-notch!

Performance
5 out of 5 (1 = Poor, 3 = Average, 5 = Excellent)
Environment
Saltwater

Reviewed by Scott M. on July 25, 2025

Verified buyer

Recommends this product

These Cables Are A Must Have!

Rating: 5 out of 5 stars

This enables me to be able to put my battery anywhere in my boat according to how many people are in it and other weight factors. They are a must have when matching your motor and battery together.

Reviewed by Brian M. on September 27, 2024

Verified buyer

Super convenient

Rating: 5 out of 5 stars

This cable made life convenient when extending my cables to reach the battery I wanted to put in the front of my kayak. No guessing gauge or splicing wires, just plug and play.

Reviewed by Kody N. on August 24, 2024

Verified buyer

Kayak trolling motor

Rating: 5 out of 5 stars

Really pleasant experience and a great product. Only wish they would have supplied the extra items needed to complete the set up or at least indicated what other parts were required

Reviewed by John R. on July 26, 2024

Verified buyer

Wire Extension/Circuit Breaker

Rating: 4 out of 5 stars

Used the extra wire just for flexibility if needed. Circuit breaker because sometimes I "Whoops", haha. Ran over my line last year blew the fuse and had to do work to get my kayak back in. Made a little battery box type thing - figure it will work pretty well.

Reviewed by Daniel R. on June 22, 2024

Verified buyer

High Quality and Reliable

Rating: 5 out of 5 stars

I recently purchased the 10ft extension to wire my motor to my battery box through hull on the bow of my kayak!!! Worked like a charm and zero loss on such a long extension run!!!

Reviewed by Ryan V. on March 26, 2024

Verified buyer

10ft Extension Cord

Rating: 5 out of 5 stars

I haven’t had the chance to use this product yet

Reviewed by Jon B. on February 19, 2024

Verified buyer

Trolling motor and extension cable.

Rating: 5 out of 5 stars

Although I still haven’t used my motor yet as it is a project in progress, I’m very satisfied with the tests I have done. I’m using mine in a project for a kayak. When completed I’m planning to send you pictures. I believe it is an excellent product, but only time will tell. I give it a 5 stars because what I see is exactly what I wanted. Thank you.

Reviewed by Shen C. on February 15, 2024

Verified buyer

Power Extension

Rating: 5 out of 5 stars

I ordered two of these extensions, one 5' and one 10' but I only received two 5' extensions. I needed one for the bow a 10' cable for the 55lb motor. Also a 5' cable for the 86lb motor on the stern. I wish that the 5' cable be replaced with a 10' cable. This would be a plus for a five star review.

Reviewed by Juan D. on November 12, 2023

Verified buyer

Response from Newport Vessels: Hi Juan,We stand behind our products and delivering a first class experience with Newport.If you can, please send us a receipt of the order and a brief description of the problem to our support email - support@newportvessels.com and we will get that replacement out as soon as possible!

Could use a water resistant connector or cover

Rating: 4 out of 5 stars

Good, cables came fast and work. But the product could use a water resistant connection or cover for the connection between battery and motor.

Reviewed by Doug A. on November 4, 2023

Verified buyer

Cable Extension

Rating: 5 out of 5 stars

Very straightforward to use, no instruction needed

Reviewed by Dennis H. on September 19, 2023

Verified buyer

Slow shipping

Rating: 1 out of 5 stars

I ordered the wire extension kit and the 60 Amp. circuit breaker 6 days ago and neither has hasn't arrived yet.I've spent a fair amount of money with Newport Vessels bought the Kayak 55 lb. thrust motor, and a battery from them.I have missed two fishing trips because of the slow shipping. Haven't got to use the new motor yet.Very frustrating.

Reviewed by THOMAS W. on August 7, 2023

Verified buyer

Question and shipment

Rating: 1 out of 5 stars

Easy and fast shipment

Reviewed by Martin T. on December 5, 2022

Verified buyer

Cable extension

Rating: 5 out of 5 stars

Product was delivered just as described and was exactly what I needed to extend my power cable. I would highly recommend this cable extension.

Reviewed by Marshall W. on October 9, 2022

Verified buyer

Frequently Asked Questions

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