Best Electrical Wiring Harnesses of 2025

"I found this kit to be excellent in quality, and I appreciate the affordable price. The installation was very straightforward, even with the instructions provided. I was able to use it for my fog lights without any issues!"

"Using this kit to install a Nilight LED lightbar on my Yamaha Rhino was a breeze! The harness was more than long enough, and the hardest part was just making a hole for the switch in the dash. Overall, a great value for the price!"

"This wiring kit is just what I needed. It works wonderfully with the lower power relay. I did modify it a bit with a different relay trigger, but it still performs perfectly. Highly recommend!"

"I installed this 21 circuit universal wiring kit to support my engine and transmission swap in a 1954 Chevy pickup. Each wire passed my continuity test and is print labeled. The pre-bundled sections for front, engine bay, dash, and tail are great. However, the instructions are a bit vague, and the wire label text is hard to see without good lighting."

"I couldn't be happier with this kit! I used it to completely replace the harness in my 1966 C10 pickup. This kit is well worth the money compared to others I've used in the past. A few wires had hard-to-read labels, but with some persistence, I figured it out."

"After several months with this harness, I started wiring up my 1963 Impala. Despite the poor label color choice, this harness has been straightforward to work with and functions perfectly. I highly recommend it for saving money over big-name brands."

"For the money, I'm very impressed. The two switch setup is well put together and has plenty of length. It’s perfect for my 08 Forester when adding fogs and ditch lights. I could build my own wiring setup, but this was cheap and ready to go. I’ll definitely buy again!"

"I found the installation to be super easy. The wire set is double insulated and of much better quality than the original wiring I removed that had a short. Overall, I'm very satisfied with this product!"

"I purchased this harness to install on my 2022 CFMOTO UFORCE 600 Side x Side for a 32-inch light bar. It was a time-saver! The harness made my life much easier to route and install, complete with fuses and connectors. The toggle switch snapped right into my extra accessory ports and has a blue backlight. I highly recommend this product!! 5 stars all day!"

"I found this wiring harness super easy to install and the quality is top-notch. It's perfect for my LED work light setup."

"These wires are heavy-duty and very flexible. It made running them under the hood of my truck a breeze."

"I appreciate the affordable price compared to other brands. The installation process was straightforward, with no complex diagrams needed."

"I was initially skeptical about this wiring harness, but it turned out to be the best investment for my project car. After cleaning up the factory circuits, I was thrilled to find that every wire is clearly labeled. The harness is robust, with thick gauge wires and plenty of length. For anyone working on an LS swap in an '80s car, I highly recommend this option."

"Having read reviews beforehand, I was a bit hesitant, but once I started installing this in my 32 Plymouth, it became clear that this harness is worth every penny. While the instructions could be improved, my years of experience made it manageable. I'm extremely happy with the results and can confirm that all circuits function correctly."

"I purchased this wiring harness for my 1976 Chevy C10. While it can seem daunting, there are plenty of resources available. The wires were clearly labeled and organized well, making the installation process smoother. Although I had to supplement some instructions from other brands, I still think this is a fantastic value compared to pricier options."

"I found this product to be exactly what I needed, and the price was unbeatable compared to other places."

"While the wiring harness itself is great, I was disappointed with the instructions, which lacked clarity."

"I've installed several wire harnesses before, and this one is on par with higher-priced kits, but I wish the black wire's purpose was explained better."

"I found this harness to be high-quality and easy to install. It worked perfectly for my new LED headlights on the golf cart, eliminating the need for complicated wiring."

"The wiring harness I used for my fog lights has been very reliable. It powers the lights effectively, and the connections are solid."

"Not much to say; the connections work well and the harness does exactly what I needed it to do."

"First, I'd like to thank the seller. My initial order arrived damaged, but they promptly sent me a replacement. This product is an incredible value; it includes a fuse box, flasher, wiring harness, and relay for the price of just a few spools of wire. Keep in mind that this is more of a kit than a plug-and-play harness. I found the wiring diagram and fuse box labels to be a bit confusing and incorrect. If you're not well-versed in automotive wiring, you might want to consider other options. For instance, the relay circuit made more sense when I compared it to the horn circuit."

"I used this wiring system in my 1953 Chevy truck, which originally didn't have tail lights. This harness was perfect for retrofitting. It allowed me to set everything up conveniently, and I appreciate how well it worked overall."

"I installed this in a 1973 Jeep CJ5 and had a great experience. I laid out my circuits and ran the wires one at a time. Taking it slow made a big difference; I encountered no significant issues. I made sure to solder and heat shrink all connections and used split loom plastic wrap. For the money, it's a solid system!"

"I found the installation to be a breeze. Everything worked perfectly, and I had it set up in 30 minutes using the included wiring diagram."

"When I installed a new Carplay compatible radio in my mother-in-law's Kia Soul, I was thrilled to build the wiring harness beforehand. It saved me so much time, and the factory harness remained intact!"

"This harness fit my 2013 Hyundai Accent perfectly, retaining the wheel controls and providing speed readings. I’m really pleased with this purchase!"

"I used this harness to wire a 30 amp accessory cooling fan for my truck AC. It worked great, and I tapped the clutch wire instead of using a switch, allowing it to turn on with my AC. The installation was clean and easy, requiring only a modification to the trigger wire and a larger fuse."

"This wiring harness kit is a fantastic solution for installing aftermarket lighting or other 12V accessories. The high-quality materials are evident right out of the box, with thick, durable nylon wiring that feels well-insulated. The included rock switch fits perfectly in my dashboard and has a solid feel."

"I've used this harness several times, and I feel compelled to recommend it. The wires, relay, and loom have all performed well. I use one for my aux fan during hot summer days and another for my fog lights, and I've had no issues such as melted wires or blown relays."