Adjuster Hole Plug for 7", 10", and 12" Brake Assemblies - Qty 1

Part Number: 46-7

In Stock

$2.15

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redline accessories and parts trailer brakes electric drum hydraulic adjuster hole plug for 7 inch 10 12 brake assemblies - qty 1

redline accessories and parts electric drum brakes hydraulic adjuster

redline accessories and parts trailer brakes adjuster plug

redline accessories and parts electric drum brakes hydraulic adjuster 46-7

redline accessories and parts adjuster plug 46-7

redline accessories and parts trailer brakes adjuster 46-7

redline accessories and parts trailer brakes adjuster hole plug for 7 inch 10 12 brake assemblies - qty 1

redline accessories and parts electric drum brakes hydraulic adjuster plug 46-7

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A Closer Look at the Adjuster Hole Plug for 7", 10", and 12" Brake Assemblies

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Replacement adjuster plug fits many Dexter and Demco (Dico) electric and hydraulic trailer brake assemblies. 1-800-940-8924 to order Redline accessories and parts part number 46-7 or order online at etrailer.com. Free expert support on all Redline products. Great prices and Fastest Shipping for Adjuster Hole Plug for 7", 10", and 12" Brake Assemblies - Qty 1. Accessories and Parts reviews from real customers.

Redline Accessories and Parts - 46-7

Replacement adjuster plug fits many Dexter and Demco (Dico) electric and hydraulic trailer brake assemblies.

Features:

Adjuster plug fits many Dexter and Demco (Dico) electric and hydraulic trailer brake assemblies
Dexter 7" x 1-1/4", 10" x 1-1/2", 10" x 2-1/4", and 12" x 2" electric and hydraulic brakes
Demco (Dico) 10" x 2-1/4" and 12" x 2" hydraulic brakes

Specs:

Overall dimensions: 0.993" long x 0.336" wide x 0.273" tall
Quantity: 1 plug

46-7 Adjuster Slot Plug for 7", 10", and 12" Brake Assemblies - Qty 1

Video of Adjuster Hole Plug for 7", 10", and 12" Brake Assemblies - Qty 1

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Demo Redline Accessories and Parts 46 7

A Closer Look at the Adjuster Hole Plug for 7", 10", and 12" Brake Assemblies

Video Transcript for A Closer Look at the Adjuster Hole Plug for 7", 10", and 12" Brake Assemblies

Today we're going to review the part, which is the adjuster plug for the 7", 10" and 12" brake assemblies. This is for a quantity of one. This replacement adjuster plug is designed to fit many Dexter and Demco electric and hydraulic trailer brake assemblies. It fits the Dexter 7", 10" and 12" electric and hydraulic brakes and the Demco 10" and 12" hydraulic brakes. The quantity is for one plug. Just to give you an overall dimension on this, the length of it is about 1 and 3/32, and the width of it is about 15/32. What this is designed for, I just want to give you an example here.

I happen to pull a, let's go out a little bit. I pulled a 10" brake assembly, as you can see right here. At the very bottom of your brake assembly there's always a spot for an adjuster plug, you can see that spot right here. This plug is designed to go in there. What that slot is used for is when you adjust your brakes, there's a star wheel on the brake assembly, you'll take the plug out, put your screwdriver in there and adjust that star wheel to adjust your brakes. When you're done adjusting them, you just pop this adjuster plug in to keep any dirt or grime from getting into your brake assembly. That should do it for the review of the adjuster plug for the 7", 10" and 12" brake assemblies.

Quantity of one.

4.7

43 reviews

5 Stars		(36)
4 Stars		(5)
3 Stars		(1)
2 Stars		(0)
1 Star		(1)

by: Z 08/21/2026

The plastic plugs fit very well on my Dexter 3000# axles

by: Rocky 02/27/2016

Bought and installed complete electric brake system from etrailer, (with the help of the etrailer technicians), on my single axle trailer. I bought the following: Dexter Nev-R-Adjust brakes, Hubs, Pro Series Breakaway kit, wire & hardware. Price was half of what local retail wanted. Install was easy and brakes work great.
Videos were a great help in the wiring process.
Thanks etrailer

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by: Eddie 05/21/2023

The Brake Adjuster Hole Plug Item #46-7 displayed in your online Ad is not the ones I received. The plugs I received is made of hard plastic and the back of the plug is not shaped like the plug in the Etrailer picture.I wanted a Rubber Plug.I was hoping to get the plug that was displayed. I ordered 7 Plugs and received 7 different plugs.

Jenny N.

5/30/2023

I went and had a look at the plug in the warehouse. The plug look had changed and I have had the pictures updated on our site. They are made of a hard plastic.

by: Tim 03/12/2026

These are going to work perfectly to keep water out.

by: Jb 03/30/2016

Great product.I actually did not need these with the new electric brakes I installed but they did not cost much and now I have some back up parts

Jordon B. One Year Later

3/30/2017

Still perfect, no issues at all

by: George W 03/06/2020 One Year Later

Brought RV without these caps, while doing maintenance I noticed a built up of rust around the entire brake system. Cleaned up the brake system, found these caps on etrailer. Following year, doing my annual maintenance, not as much rust was present.

by: Mark 07/24/2015

Product was exactly what I needed and the price was right. I ordered the bolts to mount it at same time so I didn't have the issues others mentioned. The only issue I had was the new drum took a different sized seal, so I had to measure the hub and work with the local parts store to try to find a seal that fit. Eventually found one, assembled, bled the brakes out and was good to go. I would by from eTrailer.com again without a worry.

by: Steve B 08/05/2016

Simply put - Top drawer. I am not used to being treated this well. Most people these days just don't seem to care about customer service. The etrailer bunch are real pros and it shows. Shery T, Tommy C, Jennifer S , Nikki R , Nicole and others all were there when I needed them and I am grateful. The part I got had a manufacturing defect. They were interested In the problem, sent me a new piece with no hassle and fast. As I said, Top drawer.

by: Michael 08/20/2019

All the parts I have purchased from etrailer have been of the most top quality and match to a tee....the one purchase was tail lights for my RV they were so clearin fact they looked better then the factory lights!!!

by: Max W. 10/27/2015

This is a rubber / plastic plug that simply fits either by pressing in with your thumb or tapping in with a hammer. It prevents water from accessing the interior area of the brakes thru the adjusting holes on the back plate. Each unit installed will require 2ea. of these. I installed them prior to bolting onto the axle flange for ease of access and preadjusted the shoes fit prior to final axle/ bearing bolt up. Note, as noted by Etrailer, these must be ordered extra, they do not come with the brake unit.I recommend that one should replace the old ones as they are probably rubber and will eventually fall out.

by: William 10/25/2018

Good quality products at reasonable prices. I was especially pleased with the order status updates I received as my order was processed and shipped. I was notified that one product was not in stock and the manufacturer had a delivery date in a few weeks. I was given some other product options for that item. That's excellent customer service. Thank you etrailer.

by: Chris H. 08/14/2016 One Year Later

Excellent customer service, fast shipping, great quality products, and it is nice to have the follow up in case of any problems. I would definitely buy from e-trailer again.

Chris H.

by: David 12/23/2017

Have been happy with everything I have ordered so far. The electric brakes were awesome and easy to install. Just received my last shipment and have not opened the box. Have a Merry Christmas and a happy new year. Dave

by: Michael 09/04/2025

Hard plastic not rubber

by: Alex P. 03/15/2017 One Year Later

These tiny covers plug the slot for the drum brake adjuster. My trailer has not seen much service, but these are in fine shape 1 year later.

by: Steven 10/14/2021

Great products, great prices, fast shipping. I will buy from e trailer again.

by: Fred 01/21/2021 One Year Later

Fit the bill, just what I needed. Don't know why a brand new trailer didn't come with them.

by: Brad J 10/23/2017

Great Product and Fast Shipping

by: Marvin 05/30/2018 One Year Later

Perfect replacement.

by: William 03/01/2024 One Year Later

Perfect replacement

by: Jason 09/18/2022

We thought these were rubber plugs, not the hard plastic, cheap ones.

by: Robert 11/15/2021 One Year Later

Great at keeping muck out of the brake housing area.

by: Dave H. 12/03/2016 One Year Later

As advertised.

by: Roger 03/16/2020 One Year Later

Still in place doing the job..

by: Gary 08/29/2016 One Year Later

Product worked as advertised.

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See what our Experts say about this Redline Accessories and Parts

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Replacement Adjuster Hole Covers For Dexter Trailer Brake Assemblies
It looks like you're looking for plugs that cover the adjuster holes in a trailer brake assembly, which are also referred to as mud and crud plugs. We offer # 46-7 which is sold individually or # BP10-220, sold in a quantity of 4. Both are compatible with Dexter 7, 10 or 12 inch trailer brake assemblies.
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Replacement Drum Brake Adjuster Plug
AL-KO part 568089 is an adjuster plug for a 12 x 2-inch drum brake. We offer a set of four of these as part # BP10-220. A single piece is also offered as part # 46-7. These fit 7-, 10- and 12-inch drum brakes from most brands.
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Replacement Adjuster Plugs and Brake Line for Brake Actuator on Trailer with Surge Brakes
As long as the brake line you need uses 3/8 inch 24 UNF male and female fittings you can use # T0777300 if a 13 inch line is long enough. If not we have # T0776500 that 18-25/32 inches long which is more than enough. The adjuster plugs we carry are # 46-7 for one or # BP10-220 for a pack of four.
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Dimensions Of the Adjuster Plug for Trailer Brake Assemblies
The Redline Adjuster Plug part # 46-7 measures 1-3/32" long x 15/32" wide at the top and 63/34" long x 21/64" wide at the bottom. That said, I really wouldn't get hung up on the discrepancy in size as they are pretty much an industry standard so I am sure this will work just fine for you.
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Info for this part was:

Installed by:

Jeff D

Written by:

Wilson B

Updated by:

Eric H

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