Bay Marine Supply Busbar – Large 4-Post 3/8" Power Distribution Block (250A Rating) – Red Bus Bar (with Complimentary Electrical Grease)

If you're one of those people who have like 10 wires stuffed under one screw for the accessories running in your car then think about running 1 heavy duty cable to one of these bus bars then you'll have a nice neat place to get your 12 volt battery power from. This is designed for the positive side or hot side and is isolated from it's mounting. What I like about this product is that it has a cover so that you are less likely to touch a terminal and short out or ground unintentionally. This will be good to run some high-draw accessories but not like an automotive starter motor or something directly. Just know this is positive (or negative) only and you will need another for negative side.

Used on my race car as a power distribution block in the engine bay. The battery is in the trunk of my car. I used this to power cooling fans, the starter motor, and other accessories in the engine bay. It is nice because it has large 10mm studs for large wires, but also has some smaller phillips screws for smaller power wires and terminals. Has a nice cover with plastic acorn nuts as well. Overall a nice piece and exactly what I needed for my project. I would absolutely buy again.

I was looking at installing some accessory lights on my vehicle and I realized I needed some type of intervention. I already had four or five accessories attached to the positive terminal of my battery and it was a mess. This distribution block provides a nice neat point of attachment for all that power and really cleaned up my situation. So far it's held up very well and everything seems to hold in place securely. Didn't experience any problem with the studs stripping out of their plastic base fixture. My only concern is how well the nylon cover nuts will hold in place when subjected to constant vibration such as a washboard road. Pleased with the purchase so far.

This is a really nice product. I usually buy hubs from Blue Sea Systems because I enjoy how oversized and thoroughly built they are. At their current pandemic pricing of $60 for a bus bar, I was forced to look elsewhere and found this Bay Marine instead and boy am I glad I did. Same exact quality and beefiness as the BSS but for a fraction of the price. It’s even better actually because it includes a cover !

I usually only write reviews if a product stands out eithe in a good way, or exceeds at being terrible, I’m glad I’m writing this one woth five stars at the top. I wasn’t expecting much for 20 bucks, but this is a quality piece, much higher quality then car audio distribution blocks, even from the name brands. It might not be polished to a mirror and weight 40 pounds, but I won’t have to worry about it. I will be buying more.

Wow these things are very well built, I used these to split some power on my truck to connect a DC/AC inverter and its just what I needed. Quality of the hardware is nice as well, so many times I have bought something and the item itself is great but the hardware the manufacturer puts in the box has to be replaced with better quality, not this.

Wow. Glass fiber reinforced housing, well polished stainless hardware, good quality goo. Worth the money.

The bus was larger than expected when it arrived but is of high quality and worked well in my solar project.