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3-1/2" Long suspension bolt comes with a locking castle nut and a cotter pin to secure equalizer to hanger. Grease zerk allows for easy lubrication to keep moving elements functioning properly.
Features:
Specs:
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to take a look at the 3 1/2" long Wet Equalizer Bolt with the Grease Zerk fitting, and the Castle Nut and Cotter Pin for double eye springs. Now this bolt will secure your equalizer to the center hanger of your tandem of triple axle trailer suspension system. The grease zerk fitting on this end allows for easy lubrication to keep any moving parts functioning properly. The zerk fitting right here will allow you to grease the inside of the bushing. Basically when you hook your grease can of to that and pump grease in it, it will come out of this hole. Again, it will lubricate the inside of the bushing.
Now, it does include the castle nut and the cotter pin, which is to lock the bolt in place on to the hanger. Few specs on this, the bolt is a grade 5 bolt. The overall length which would be measured from the bottom of the head to the very end is going to be right at 3 1/2". The bolt size is a 3/4" diameter, 16 threads per inch. The bolt head size and the nut size is going to be the same, it is 1 1/8". Screw that on and I can show you, here's a 1 1/8" socket.
Fits the head, and it fits the nut. That should do it for the review of the 3 1/2" long Wet Equalizer Bolt with the Grease Zerk fitting, and the Castle Nut, Cotter Pin for double eye springs.
Average Customer Rating: 4.8 out of 5 stars (64 Customer Reviews)
3-1/2" Long suspension bolt comes with a locking castle nut and a cotter pin to secure equalizer to hanger. Grease zerk allows for easy lubrication to keep moving elements functioning properly.This is an excellent product, but I gave it four stars because it was nearly impossible to install with ordinary tools. It was necessary to force the serrated portion into the center hanger and since I did not have access to power to run a compressor and force it into the hole using excess torque via an air wrench, I had to use a hammer to drive the serrated end into the hanger. I found an install video from etrailer that showed how the installation was to be done, but I could not accomplish it that way. Besides the amount of torque needed would probably have twisted the bolt off at the grease hole. As it was, I drove the part in with a 3# hammer after destroying ordinary white wood blocks of wood. I removed the grease zerk and used another piece of flat iron to protect the zerk's threads. I was able to bottom the head against the hanger by tightening the nut as much as I could by hand and then hitting the head with the hammer a few times, tighten again, etc., until it was completely in place.
This method was used on both sides of the trailer. To torque these into position with an ordinary wrench would have exceeded 1000 lbft of torque which I am not sure that these bolts would take without damaging them more than the hammering did.
To be fair, the information suggested that the hangers be replaced, but that was because many times the hangers are damaged if the other parts wore out. But it is fairly clear that the holes in the hangers are not pre-formed with matching serrations so I doubt that it would have changed the issue.
In short, I don't believe that the serrated portion is necessary. And if it is, then a keying method would be more appropriate, such as a square hole.
Other than cotter pin is way too small and had to add a couple washers so castle nut reached keeper hole a great product at a good price.
Replaced these when I replaced the equalizer bars. Excellent product.
Kevin B.
7/24/2018
I installed these a my 2 horse trailer. Exact fit. Easy installation.
I am rebuilding my tandem axle utility trailer and the center shackle bolts were rusted tight. Upon removing them, they were also badly worn. I went into my local auto parts store and they didn't carry nor could they get through their suppliers the replacement size. Only place I could find the 3/4" zerked bolt was eTrailer.com. I ordered two, they arrived quickly and were the exact size I needed. They installed easily and are working great!
Purchased replacement springs, equalizers, shackles and all the needed hardware to put it all together for my tandem axle boat trailer. While I was trying to figure out all the parts I needed on-line, I made a couple calls to etrailer's customer service and they were awesome! Parts arrived quickly and are exactly what I needed. I put together one of the spring / equalizer / spring set-ups and placed it on the trailer frame to confirm fit. Perfect! Looking forward to swapping all the parts out this weekend. And I'll be shopping with etrailer again soon to get a trailer hitch for my new Durango!
Thanks etrailer!
Replacement parts were easy to find. They seemed to be better than factory parts, and were easy to install. They fixed an old horse trailer up that I thought would be hard to find parts for.
Really liked the zerk fittings on these. Should make for a durable suspension that lasts.
great item,easy navigation on website,fast check out.Great price on the item and shipping.The only downside was that shipping took a little longer than I anticipated.Overall still a very good shopping experience!!
Pleased with product. When equalizers arrived, ordered second set. Thanks! Quick Service. Good Product. The way it should be!
These greaseable replacements for ordinary OEM bolts should make my old trailer last a lot longer
Just what we needed at a really good price! Thanks etrailer!
Great service. Product arrived early. Best quality. I'll definitely continue to deal with etrailer.
Everything worked perfectly. Shipping was fast and I had no problems installing. Thanks e-trailer
Just as described, arrived promptly as always from etrailer.
This part was an upgrade from my old 5/8 bolt. Perfect length even after plating my hangars for extra strength.
All products we have gotten from you has worked well for us. No problems with anything. Thanks for the fast service and help.
Excellent quality parts and great pricing.. the shipping was "affordable" too
Quality parts for great prices. Everything was just as described.
Delivered fast an easy.... I haven't used it yet, but it seems exactly what I ordered
Delivered fast an easy.... I haven't used it yet, but it seems exactly what I ordered
This product lived up to my expectations. No problems with it whatsoever!
Worked great. Go with the grease able bolts
Best thing I ever done,can grease them any time
Excellent product, however I have not used them yet.
Seems good for the price. Like that they are a higher grade than a 2
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Neal
3/22/2019
So far so good