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What are the best waterproof relay box and harness currently available to purchase? This article attempts to give you some answers to guide you in the process of purchasing the best waterproof relay box and harness to suit your needs. In our buying guide, we outline certain features to consider when buying waterproof relay box and harness. It is important to take time and research before you commit to purchasing.

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Best waterproof relay box and harness reviews

1. Concours Specialties Universal Waterproof Fuse Relay Box Panel Cooper Bussmann ATV UTV RV Boat 4X4

Feature

Complete Waterproof Relay/Fuse Block - Fully loaded and Wired using high quality Cross-Link XLPE Automotive Wire
You get five (5) fused 35 amp relays and five (5) additional constant fused circuits
All wires exit at the center of the box. Compact sealed unit: box is 4.5 x 3.25 x 3. Mounting brackets add 2" to the height.
Can be flush mounted or use the brackets that are included.
Approximately 3 feet on each wire. Single 8 gauge power wire. 80 amp capacity

2. MICTUNING 12-Slot Relay Box,6 Relays,6 ATC ATO Fuses Holder Block with 41pcs Metallic Pins for Automotive and Marine Engine Bay

Feature

Large Capacity Holder Box - A clean storage for many projects, tightly holds up to 5 Bosch-style 5pin relay and a RTT7121 4pin Relays, and 6 ATC/ATO blade Fuses
Special Mounting Legs - High and low legs are designed to snugly adhere to modern angular engine bays or trunk areas, for the flat surface, please add rubber pad yourself to level out the relay box (DIY installation)
2 Clip-Locks Cover - Easy access to the relays and fuses and securely keep them in place, allowing you to quickly maintain or replace the burnt one, also good protection from water splashes, dust and debris
Elegant & Durable - Made of PA6 rating Flame retardant shell, durable and safe, with precise cutouts of each slots and reserved an Arc-outlet on the edge, it keeps all your wiring tidy and good look as OEM factory manufactured
Universal Fitment - Suitable for ALL vehicles, 4X4 Offroad Jeep SUV UTV ATV RV Pickup Truck Trailer Camper Marine Boat, etc. Guarantee with 100% Satisfaction, please buy it with confidence and feel free to contact us if there's any question

3. 12V Auto Waterproof Fuse Relay Box Block [6 Bosch Style Relay Holder] [6 ATC/ATO Fuse Holder] Universal Relay Block Box for 12V Automotive Vehicles Cars Marine Boat Light Equipment

Feature

REMAP YOUR WIRING - organize, consolidate, and keep track of multiple independent circuits with six relay sockets and six fuse holders.
MULTI-TRERRAIN - Our unique "Z" shaped brackets make it possible to securely mount this waterproof relay box just about anywhere.
BUILT LIKE A TANK - Made from durable and dependable nylon 66 and sporting an IP65 waterproof rating, our relay box dosent understand the word "can't."
A COMPLETE KIT - Box, brackets, seals, terminals, we've included everything you will need to sucessfully install your new waterproof relay box.
MORE THAN A WARRANTY - We've got you covered with an industry leading two-year warranty and the best customer support in the business.

4. 6 Gang Switch Panel, OFFROADTOWN Universal Circuit Control Box Button Switch Electronic Relay System Pod Touch Switch Box with Label Stickers for Truck UTV ATV SUV Boat Car

Feature

6 GANG SWITCH PANEL - Operating at 12 Volts and a max power rating of 960 Watts, this 6 gang switch panel allows you to control up to 6 different LED lights or devices. Includes 24 reusable switch labels, the panel can be customized accordingly and has green/yellow LED backlighting to illuminate the switches YELLOW-ON,GREEN-OFF. With high stability and strong anti-interference ability, it can be used in any harsh environment.
UNIVERSAL FITMENT - Our more compact size switch panel control system are perfect for all 12V DC power application, such as off road, truck, powersport, marine, boat, yachat, bus, heavy duty etc. The touch panel is sensitive and be installed on dashboard, dash panel, center console, overhead sunglasses holder, etc.
CLEAN & EASY - The best way to clean up all wiring in your vehicle. Plug and play wiring harness with plenty of length. Switch panel is good to be installed in any position in your vehicle with brackets, no need to cut a big hole and damage your car. Labels attach easily. All the necessary hardware is included, space saving and time saving. Come with professional instruction.
SAFETY & DURABILITY - Built in integrated temperature protection system, over-voltage protection, overcurrent protection, reverse polarity protection, ensure all connected lights & accessories work safely. Come with dust and dirt resistance switch panel buttons, high-temp and abrasion resistant wiring harness and high quality ABS control box, no need to worry about service life.
BUY WITH CONFIDENCE - Comes with switch panel, control box with wiring harness, 24pcs labels, 6 color coded output wires, 6 40A relays, 1 30A and 5 20A fuses, panel bracket, screws, REPLACEABLE butt splice connectors, wire splice connector, 3M double-sided tape, zip ties, instruction. We provide TWO years quality assurance and 24 hours hassle-free after-sales service.

5. Niome 18-way Blade Fuse Holder + 10-way Relay Socket Box Dust-proof for Car Automotive Marine

Feature

The 18-way blade fuse holder is universally fit for all vehicles.
It's very easy to assemble and install.
All the necessary connecting pins are included in it. They are easy to hook up, and the design of cable opening hole for all wires allows you to entangle them via one main jacket, well-connnected and waterproof and dust-proof.
Material: ABS, metal

6. 6 Gang Switch Panel, DJI 4X4 Electronic Relay System Circuit Control Box Waterproof Universal Fuse Relay Box with Wiring Harness Assemblies kit for Truck Marine Boat Jeep Wrangler ATV UTV Camper

Feature

CUSTOMIZE YOUR OWN SWITCH PANEL -- Operating at 12V/24V and 960 Watts max power rating, this powerful switch panel box can control 6 sets of LED Light & accessories in a convenient place. Featuring the high sensitivity, stability and strong anti-interference ability, you can customize your own powerful switch panel with 24Pcs self-adhesive stickers. It will be the best way to clean up all wiring harnesses also ensuring your safety driving by adding just one switch panel to control everything.
EASY & QUICK INSTALLATION -- Clean and neat design, no frustrating wiring! Different color wires are wrapped in a compact and elegant retail box, plug & play wiring harness with plenty of length make the installation only need 1 hour. No need to cut a big hole on your vehicle.
SAFETY PROTECTION -- With an integrated Overload protection and Thermal protection system, it will provides all connected lights & accessories safety. Temperature protection relay & fuse box will automatic disconnect when the internal temperature exceeds 100 C. Reverse polarity protection, over-voltage protection and over-current protection will help all the loads work safely.
HIGH QUALITY DESIGN -- Adopting environment friendly materials, our universal fuse and relay control system is high temperature resistant (even 200 max). Fuse & Relay Box Shell are made of Eco-friendly & flame retardant durable ABS plastic.
ALL IN ONE DESIGN -- Including everything you need for installation and using. No need to buy extra parts! 6 Gang Switch Pods + 24pcs Self-Adhesive Stickers + Switch Panel Brackets + Relay & Fuse Control Box + Screw Tapes + Strapping Tapes + Wiring Harness + Installation Instructions. 2 Years Warranty & 24 Hours excellent online service.

7. Waterproof Fuse Relay Box with 7 Relays and 10 Fuses for Automotive and Marine, 9-Slot Blade Fuse Holder Fuse Box(3 Reserved),7-Slot Bosch Style Relay Holder,5-Slot Socket for Jeep Boat Car Or Truck

Feature

WHAT YOU GET - 9-way fuse box 7-relay holder with spade terminals,including 12PCS ATO/ATC fuses and 7PCS 12V 30/40A relays.
REMAP YOUR WIRING - organize, consolidate, and keep track of multiple independent circuits with six relay sockets and six fuse holders.
MULTI-TRERRAIN - Our unique "Z" shaped brackets make it possible to securely mount this waterproof relay box just about anywhere.
BUILT LIKE A TANK - Made from durable and dependable nylon 66 and sporting an IP65 waterproof rating.
A COMPLETE KIT - Box, brackets, seals, terminals, we've included everything you will need to sucessfully install your new waterproof relay box.

8. WATERWICH 6 Gang Switch Panel Electronic Relay System Circuit Control Box Waterproof Fuse Relay Box Wiring Harness Assemblies for Car Auto Truck Boat Marine (Universal 6 Switch Panel)

Feature

Customize Personal Panel: Customize unique personal switch panel with 24 universal switch stickers.Operating at 12 Volts and a max power rating of 960 Watts,
Quick and Easy Installation:Clean and Neat Design: No frustrating wiring . All wires are labeled and in different colors,Just need an hour,With plug and play wiring and easy-to-install components,It can solve the problem of the wiring for car lights modification and installation.
Safety First Design: Advanced thermal protection and overload protection design will help the loads work safely.A temperature protection switch automatically disconnects the relays if the internal temperature crosses 100 C.
Made out of quality material,High temperature resistant,Fuse Relay Box Shell made of Eco-friendly & flame retardant durable ABS plastic,Operating Temperature:you can even use it at 200(max).Totally Environment Friendly.
What you get: All required mounting hardware and wiring instruction included -6 Gang Led Illuminated Switch Panel, Fuse Relay Box, Wiring Harness, Mounting Accessories, Wiring Instruction, 12-month worry-free warranty and friendly customer service.

9. 8 Gang Switch Panel, YCHOW-TECH Circuit Control On-Off Led Car Switch Panel Relay System Box Waterproof Fuse Relay Box Wiring Harness Label Stickers for Car Truck Marine Boat ATV Utv

Feature

SPECS - The 60A self-recovery circuit breaker and relay protect the instant overload as well as control the overall power, the whole circuitry have over-voltage protection, over-current protection, reverse polarity protection and thermal protection. Each circuitry has separate fuse protection and corresponding LED indicator. Working voltage: DC 12V/24V; Max power: 600W-1200W; Max circuit 60A(Every circuits).
WIDELY USE - Light bar switch panel save space and be installed on dash panel, dashboard, center console, overhead sunglasses holder, etc., widely used for off road vehicle, truck, atv, utv, suv, power sport, pick-up, marine, boat, yacht, trailer, bus, heavy duty and so on.
CLEAN & EASY - The switch control box comes with all accessories, there are 2 kinds of mounting brackets to mounted the switch panel, dont need to dig hole,10pcs zip ties help you manage the wire better ensure inside tidy after installation and plug & play wiring harness. 50pcs reusable DIY stickers by your favor and needs.
SAFETY PROTECTION - Adopting capacitive sensing technology with green indicator light display, high sensitivity, stability and strong anti-interference ability, use of superior material in manufacturing processes results in products that deliver exceptional wear resistance performance. This universal switch panel can control 8 pair light bars and other devices at the same time.
ALL IN ONE - The elegant package contains everything you need for installation and use. No need to buy extra parts. 8 Gang Switch Panel + 50pcs Self-Adhesive Label + 3 Sets of Mounting Brackets + Switch Control Box + Screw Tapes + Strapping Tapes + Wiring Harness + Installation Instructions.

10. 6 Gang Switch Panel Electronic Relay System Circuit Control Box Waterproof Fuse Relay Box Wiring Harness Assemblies For Car Auto Jeep Truck Boat Marine Universal Button Pod Touch Switch

Feature

FEATURES - Adopting capacitive sensing technology with green and yellow indicator light display, with high sensitivity,stability and strong anti-interference ability, use of high quality materials in manufacturing processes results in products that deliver exceptional wear resistance performance. This switch panel control 6 light bars and other devices at the same time. Each circuit: 40A.
KILL DANGEROUS - The box has 6pcs fuse,relay and temperature protection switch,the temperature is higher than 100 and all the relay will be automatically disconnected,the whole circuitry over-voltage protection ,over-current protection and reverse polarity protection.
QUICK AND EASY INSTALLATION - Clean and Neat Design: No frustrating wiring . All wires are labeled and in different colors,Just need an hour,With plug and play wiring and easy-to-install components,It can solve the problem of the wiring for car lights modification and installation.
BOX COME WITH - 6 gang switch panel, control box, 24pcs stickers, long enough and durable nylon wiring harness, 6 color coded output wires for hooking up accessories, 6 plug-in style 40A relays, 1 ATO style 30A and 5 20A fuses for protection. Accessories included panel bracket, 3M double-sided tape, butt splice connectors, wire splice connector, screws, zip ties, manual (accessories are at the bottom of the foam pad).
WIDE APPLICATION - Upgrade small size switch save more space and can be mounted on dash panel, dashboard, center console, overhead sunglasses holder, etc.,Suitable for all DC 12/24V off road vehicle,car, truck, jeep, marine, boat, yacht, trailer, bus, heavy duty and so on. Maximum Power: 720-960W.

Conclusion

All above are our suggestions for waterproof relay box and harness. This might not suit you, so we prefer that you read all detail information also customer reviews to choose yours. Please also help to share your experience when using waterproof relay box and harness with us by comment in this post. Thank you!