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Rockville RMWK4 4 AWG Marine Amplifier Wiring Kit, Waterproof, Tinned-OFC/CCA, High-Current, Complete Install for Boat & Car Audio

  • Based on 115 reviews
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Availability: Only 8 left in stock, order soon!
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Arrives Aug 7 – Aug 10
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Features

  • HIGH-PERFORMANCE 4 AWG WIRING: Includes 18 ft. tinned-OFC power and ground cables for reliable, low-resistance power delivery in marine and car audio systems.
  • WATERPROOF AND DURABLE DESIGN: Built with corrosion-resistant materials and waterproof insulation for dependable use in boats, off-road vehicles, and harsh environments.
  • COMPLETE INSTALLATION KIT: Comes with 18 ft. power wire, 18 ft. ground wire, 20 ft. RCA cable, 25 ft. speaker wire, 25 ft. remote wire, fuse holder, and terminals.
  • EASY AND SECURE INSTALLATION: Flexible cables and pre-installed terminals make setup quick and simple; included fuse holder and fuses protect your audio system.
  • VERSATILE AUDIO COMPATIBILITY: Ideal for marine stereos, car subwoofers, and amps; supports a wide range of high-power audio setups for any adventure.

Description

The Rockville RMWK4 is a complete 4 AWG marine amplifier wiring kit built for high-performance marine and car audio applications. It includes 18 ft. of high-current, low-impedance tinned-OFC power and ground wire, 20 ft. of twisted-pair RCA cable, a 25 ft. remote wire, and a 25 ft. speaker cable- everything you need to power your amplifier with low resistance and clean signal transmission. The kit is made to withstand harsh environments with waterproof insulation, corrosion-resistant materials, and a rugged fuse holder with included 120A and 80A Mini-ANL fuses. Also included are (2) ring terminals, (2) spade terminals, (5) speaker cable terminals, (10) white cable ties, and (1) washer for a secure, organized install. Perfect for boats, off- road vehicles, or car systems, the RMWK4 delivers dependable performance and clean audio power with simple setup. Whether you're upgrading your marine audio or installing a new subwoofer system, this kit gives you the durable components you need for lasting sound quality.

Brand: Rockville


Material: Copper, Polyvinyl Chloride


Item dimensions L x W x H: 2.76 x 9.4 x 20.9 inches


Connector Type: Rca, Spade, Ring


Number of Items: 1


Brand Name: Rockville


Manufacturer: ROCKVILLE


UPC: 819216026595


Warranty Description: 1 YEAR


Global Trade Identification Number: 95


Part Number: RMWK4 V2


Model: RMWK4 V2


Unit Count: 1.0 Count


Included Components: 1


Item Type Name: Rockville RMWK4 4 AWG Gauge Waterproof Marine Amplifier/Amp Install Wire Kit


Item Dimensions: 2.76 x 9.4 x 20.9 inches


Connector Type: Rca, Spade, Ring


Material Type: Copper, Polyvinyl Chloride


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 7 – Aug 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • High quality
Love this wiring kit, very high quality making it easy to trust in my boat. Length of wire was perfect for my 21’ center console.
Reviewed in the United States on April 13, 2026 by Bobby

  • Has everything you need
Nice install kit. Comes with everything you need. If you have any doubt, everything is labeled.
Reviewed in the United States on December 14, 2025 by Chris Sawyer

  • Nice
Works great in my boat running a 8 channel amp with it.
Reviewed in the United States on September 25, 2025 by Kenneth elliott

  • Works
Working good wish it had more speaker wire but can't complain
Reviewed in the United States on August 5, 2025 by Beny Ayala

  • Perfect for Boat
High quality for the price. Would buy again
Reviewed in the United States on July 23, 2025 by tyler wellman

  • Got the job done
Purchased to install my 1000 watt marine amp on my pontoon boat. Works like it should. Great value
Reviewed in the United States on June 4, 2025 by Chris

  • 1 year later. Wire does not last! 1 year later. Wire does not last!
I originally gave this five stars, but one year later my amp has quit working. Just went to investigate and to add a Noco battery maintainer, and the ground wire is literally falling apart. The lug literally had disintegrated off. Cut a little piece off and the rest breaks. I literally went 8 inches from the lug and the wire continues to just break off. It is extremely oxidized and has created powder all over the negative battery terminal and inside of the braid. I was wondering where it came from and now I know. This is not quality wire, I have always rinsed this boat with freshwater and we keep it at the house, covered. Absolutely would not buy again. I’m going to West Marine right now to buy a proper piece of marine power wire. This might work in an automobile environment, but definitely not in your boat. Do not buy this junk. ... show more
Reviewed in the United States on October 12, 2023 Reviewed in the United States on October 12, 2023 by mike

  • Perfect
Installed the Rockville marine amp and this, kit included everything I needed and arrived on time 10/10
Reviewed in the United States on April 19, 2025 by Alvin white

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