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etrailer Flat Mount Trailer Coupler - - CTA-400PL Review

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Review of etrailer Flat Mount Trailer Coupler CTA-400PL

Today we're going to be taking a look at a flat mount trailer coupler for a 2 5/16 inch hitch ball. This couple is going to let you hook up your trailer to your tow vehicle. It's got the connection point for the hitch ball right here. That's just the ball socket. This is going to feature a gross weight capacity of 14,000 pounds and it's going to feature the thumb latch mechanism. It makes it very easy to secure to and release from your hitch ball.

In order to open up the socket to receive the hitch ball, you simply push this forward and then pull it all the way back. When it's in the fully back position, it will hold itself in the open position. Now you can drop it over your hitch ball and then simply just push this forward to release the thumb latch mechanism and secure the socket around the ball. Really nice design. Very easy to use. Then you can see here at the back it's got the flat mounting plate that's going to bolt directly to the trailer frame.

The hardware's not included. The unit's made from a sturdy steel construction. It's going to feature a nice black powder coat finish so it's going to provide a lot of protection from rust and corrosion. A few measurements that we want to go over with you real quick. We want to give you the overall length so measuring from the back of the mounting plate to the very front of the coupler.

That's going to give us a measurement. That looks to be right around 7 1/2 inches. The distance that we have between our mounting holes measuring on center. These are going to be separated by 4 1/2 inches. Then going this direction, we're looking at 4 1/2 inches, so the square design.

The bolt hole diameter is going to measure 5/8 of an inch. The dimensions of the actual mounting plate, that's going to be 5 7/8 of an inch and it's a square design, so 5 7/8 by 5 7/8 and then it's going to measure 3/8 of an inch in thickness. Here on the thumb latch mechanism, you're going to notice a small pin hole. That's designed for a coupler pin or a coupler lock. That pin hole diameter is 5/16 of an inch. The minimum span needed or the usable pin length, so from this point here to this point here is going to measure 7/8 of an inch. If you're in need of a coupler pin or a coupler lock, they are sold separately and you can find them right here at That's going to do it for today's look at the flat mount trailer coupler for a 2 5/16 inch hitch ball.