CheeMuii 7 Way Trailer Wiring Harness Kit 8 FT Trailer Cord with 7 Pin Trailer Plug and Junction Box Kit Premium Light and Brake Wiring Wires for Trailer RV
Original price was: $30.00.$24.99Current price is: $24.99.
Price: $30.00 - $24.99
(as of Nov 09, 2025 19:10:31 UTC – Details)
From the brand
CheeMuii is dedicated to providing high quality brake system components for your truck, trailer, RV. We deeply value the importance of reliability and safety on the road, so we offer a range of products tailored to keep them in top condition. We are committed to being a trustworthy partner and sincerely appreciate your trust. You are not only our customer, but also an important member of our family.
Trailer Wiring Harness Kit
Trailer Wiring Harness Kit
7 Pin Trailer Plug
DOUBLE PRONG TRAILER PLUG: Cheemuii 7 pin trailer plug uses the premium copper double prong to replace the poor single prong, and the outer wrap is made of weatherproof and durable material to ensure a longer service life
JUNCTION BOX: The junction box is equipped with 7 color-coded terminals and wires, which can easily identify the corresponding functions of the wires and facilitate wiring. Strong junction boxes are waterproof and dust resistant to increase the service life of trailer cords
COPPER POWER CORD: The 7 way trailer wire is made of high-quality copper and has a long service life. And has excellent electrical and thermal conductivity, to ensure the normal use of car lights in the process of driving (such as turn signal and brake lights, etc.)
DETAILED WIRING INSTRUCTION: CheeMuii trailer cords use 7 color-coded wires, and the color code adopted is suitable for most RV trailer wiring standards, but as there are some differences between trailer manufacturers, we have updated the detailed instructions, please read them carefully before use. Please refer to the wiring instructions and connect cables according to the color and function of the wires to avoid errors
WIDE APPLICATION: Suitable for trailers, RVs, campers, caravans, food vans and other towed vehicles. Perfectly connected taillights, brake lights, reverse lights, turn signals and auxiliary power
Customers say
Customers find the trailer wiring kit to be of good quality, working well for re-wiring old trailers, and appreciate its straightforward installation process with clear instructions for both RV and trailer connections. The product offers good value for money and is easy to use, with one customer noting the outstanding documentation with photos and maps. The color coding receives mixed feedback, with some customers appreciating the color-coded studs and instructions while others report incorrect colors, and the connection quality is also mixed, with some customers reporting solid connections while others experience loose connections.
13 reviews for CheeMuii 7 Way Trailer Wiring Harness Kit 8 FT Trailer Cord with 7 Pin Trailer Plug and Junction Box Kit Premium Light and Brake Wiring Wires for Trailer RV
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Original price was: $30.00.$24.99Current price is: $24.99.
Sarah –
Decent for the price. Match function on terminals to wires on trailer.
Just installed, but was fairly easy. It comes with a cross reference but it also has the terminals labeled. I just matched the colors on my trailer to the labeled terminal function. Worked perfect and didn’t have to mess around with matching wires.Terminal box does not appear waterproof, so its may need ether silicone all around to seal it up or just put terminal grease over everything.For the price I think it was a decent deal. 7 pin connector seemed OK quality. I believe the wires were copper as well.
William C. –
Extremely easy to install
Great setup allows you to easily connect your trailer wires and makes everything look very nice, clean and professional
LightForAll –
Terrific stand alone junction box!
This review is for the junction box ONLY, no wiring kit was purchased. Also this review is only from the standpoint of finding a junction box to use for the installation of emergency LED lights and not for trailer use.This box was exactly what I needed, a box with multiple access options, one thatâs beefy and has a color coding. This really helped me to install and organize multiple harnesses that I linked in this box, with six positive posts, and I also modified the box to use the seventh post for grounding each of the wire harnesses. The output cord was a six pole 18 gauge wire that went through the firewall, being wired into a 12-gang switch panel. Iâll add photos and shoot some footage of how I wired. The box has plenty of interior space and functions quite well for my needs Iâll add photos and a video and update as things happen.
Grandpa Marty –
Great Product; Great Price
Very solid box and wiring. Loved the color coded labeling and instructions. Would definitely buy again if I need another one.
NAY –
Good strong wire, nice and tight plug.
This works great. Easy to hook up. The 8 ft wire feels little short so better get the 15ft option. It is strong and durable. The color of the wire and the assigned role are a bit different from what i had but not so much of a problem. It show the color and what wire do what so i love it.
s.mcewen –
Good purchase
My husband ordered this for a cattle trailer and he absolutely loves it. Has ordered another. Easy to install and has everything you need. The quality is good and the size of the wires makes it easy to work with. Great product.
Elisa Lozano –
Light harness
Fits well, easy to assemble and install works well, the thickness and design exceptional.
AJ –
Great product
Makes wiring a trailer easy.
pautang –
Works perfectly, easy to install
Luc Rousseau très facile à installer pour les chat –
Oui j ai rester surpris de voir la qualité du plastique ,sans oublier la fabrication pour éviter infiltrations de lâeau pour éviter la rouille.
Richard Howard –
Quality was very good and it makes it so easy to on and test. It’s better to do this rather than just replace the plug.
Kyle Ramos –
Good replacement for rewiring my trailer, cord does get really stiff in the winter but hasnât effected the performance. Good all in one kit for the price
glen prentice –
i have bought 3 of these for all my trailer works great