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Dexter Axle Trailer Brakes - Electric Drum Brakes - 23-428-429 Review

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Review of Dexter Axle Trailer Brakes 23-428-429


Today we're going to take a look at the Dexter 12 1/4 inch trailer brake kit, includes the left hand and right hand brake assemblies for 7200 pound axles. Now, these are electric brakes. Electric brakes are a lot easier to install, they offer more user control than hydraulic brakes. Basically they require just an electric brake control, which we do sell separately on our website. There's no actuator or hydraulic lines necessary. Now these are manual adjustment brakes and you can do that by right at the bottom here there's this adjustment gear that you can adjust it in or out. Now, manual adjustment brakes do require periodic manual adjustment.

This part includes both the left hand driver side, the right hand passenger brake assemblies. Now, the mounting bolts and the hardware you use to install this is sold separately. A few dimensions on this. The dimension on the brake assembly is 12 1/4 inch diameter by 2 1/2 inches wide and where those measurements are taken, the diameter would be measured from this shoe all the way across to this shoe, so if we put a ruler on that it's 12 1/4 inches. The 2 1/2 inches wide would be the width of the brake pad on the shoe. There's your 2 1/2 inches. Now, this does use a brake mounting flange bolt pattern of four bolts.

You can see the four bolt holes right here. Those require the use of 12 1/4 brake drums. The wheel size used on this is 15 inches or larger and again the axle rating they're designed for is 7200 pound axles. Now, these are electric brakes and you'll notice they do have two wires, two red wires on them. These do need to be connected. One goes to a brake feed, the other goes to the green ground and they're both red wires so either wire can be used for either function. The last thing I wanted to let you know is the left hand and right hand, how to tell the difference in which for which side.

Now, on a new assembly there will be stickers that tell you that. That's easy to do. But if the sticker wasn't there, the way to tell is you just look at the length of the pad on the brake shoe. This pad goes from here all the way to here. This one's from here to here.

This is the shorter pad. Shorter pad is always the primary shoe that'll always face the front of the trailer, so that's telling you this is the right hand passenger side assembly and if we go to the other one, same way: look at the length of the pad. Goes from here to here, this shoe is just from here to here. This is shorter. Primary shoe faces the front; that's telling you that this is the left hand driver side assembly. That should do it for the review on the Dexter 12 1/4 inch electric trailer brake kit with the left and right hand brake assemblies for 7200 pound axles.


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Info for this part was:

Employee Jeff D
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Jeff D

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