bing tracking image
  1. Accessories and Parts
  2. Dexter
  3. Trailer Brakes
  4. Hydraulic Drum Brakes
  5. Brake Assembly
  6. 12 x 2 Inch Drum
Dexter Galphorite Free-Backing Hydraulic Trailer Brake Assembly - 12" - Right Hand

Dexter Galphorite Free-Backing Hydraulic Trailer Brake Assembly - 12" - Right Hand

Item # T4489500
Retail:$133.77
Our Price: $106.21
You Save: $27.56
Accessories and Parts
Shipping Weight: 14 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Customer Photos

Videos

Need help with installation?
Locate installers near me
Drum brake assembly provides superior protection from corrosion and lets you reverse without actuating. Designed for use with hydraulic brake actuators that do not include reverse lockouts. Fits most 14-1/2", 15" and 16" wheels. 1-800-940-8924 to order Dexter accessories and parts part number T4489500 or order online at etrailer.com. Free expert support on all Dexter products. Great prices and Fastest Shipping for Dexter Galphorite Free-Backing Hydraulic Trailer Brake Assembly - 12" - Right Hand. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (22)
  • Q & A (0)
  • Photos

Dexter Accessories and Parts - T4489500

  • Trailer Brakes
  • Hydraulic Drum Brakes
  • Brake Assembly
  • 12 x 2 Inch Drum
  • Dexter
  • RH
  • 6000 lbs
  • Free Backing

Drum brake assembly provides superior protection from corrosion and lets you reverse without actuating. Designed for use with hydraulic brake actuators that do not include reverse lockouts. Fits most 14-1/2", 15" and 16" wheels.


Features:

  • Galphorite plating delivers superior corrosion protection
    • Backing plate and shoe levers are sealed with permanently bonded electrocoat primer
    • Second coat of rugged acrylic is applied to backing plate - virtually rustproof
    • Wheel cylinders are treated with hot black oxide
    • Internal components are olive drab, zinc plated
    • Stainless steel springs
  • Free-backing design lets you reverse without trailer brakes being activated
    • Specifically designed for use with surge-style trailer brake actuators
    • Hydraulic pressure is contained by wheel cylinder


Specs:

  • Right-hand assembly - passenger's side
  • Dimensions: 12" wide x 2" thick
  • Pad lining: 46 sq in
  • Wheel size: 14-1/2", 15" or 16"
  • Mounting flange bolt pattern: 5 on 3-7/8"
  • Mounting bolts sold separately
  • Center hole diameter: 3-1/4"
  • Axle rating: up to 6,000 lbs
  • 1-Year warranty
    • 2-Year corrosion warranty


The unique free-backing design, patented by DICO, lets your trailer move in reverse without actuating the brakes. When you begin backing up, the brake shoes are firm against the drum, as in a braking situation. As you continue in reverse, however, the shoes turn with the drum until the lining pressure is released and you are able to back up freely.

These brakes are designed to eliminate friction between the shoes and drum when you are driving in reverse. A trailer breakaway kit will not be effective should your trailer disconnect from your tow vehicle when backing up.



023-581-00 Dexter Axle Premier Freebacking Brake Assembly - 12" x 2" - Right

Replaces Titan 4489500






Customer Reviews

Dexter Galphorite Free-Backing Hydraulic Trailer Brake Assembly - 12" - Right Hand - T4489500

Average Customer Rating:  4.8 out of 5 stars   (22 Customer Reviews)

Drum brake assembly provides superior protection from corrosion and lets you reverse without actuating. Designed for use with hydraulic brake actuators that do not include reverse lockouts. Fits most 14-1/2", 15" and 16" wheels.

by:

Best services every time!! Fast and easy and RIGHT.



by:

Bolt on in place of the old ones in less time than it takes to try to clean up and repair the rusty old ones. Great price too. The Galphotire coating looks like it will outlast the trailer. Definitely made my job easier. I used these to repair the brakes on an M-1102 military trailer. These don't have the parking brake option like the original brakes, but then I never used the Parking brake. E-trailer also has the assemblies with the parking brake.



by:

The brakes fit perfectly and have performed flawlessly. The replacement was just routine maintenance to replace worn brakes. They shipped fast, well packed and ready to bolt on.

Buying them fully assembled was far easier than trying to replace the shoes themselves. Besides, if you exposed your trailer to any kind of salt water - you'll definitely want to change ALL parts. The cost is negligible and well worth knowing they will perform when yo need them to. Why chance replacing just a few parts? Yea, you might save some money, but not much.

Fantastic service and parts! I doubt I'll shop elsewhere!



Thank you!



by:

I replaced the right and left brake assemblies and repacked the wheel bearings on my 1979 EZ Loader trailer on a Saturday afternoon. The entire job was very easy to do. I did have to do some minor re-tapping of the original hydraulic fittings primarily to get it to thread into the assembly fitting with ease, but even that was a snap (my neighbor just happened to have a tap and die set). I pull about 4000 lb of Searay and trailer combined (I weighed them on a public scale), and it was past time to replace the assemblies and actuator which had major corrosion after all those years of good service. If nothing else, I have peace of mind that all is well behind me.



by:

replaced 10 yr old brakes on my boat trailer.easy install @ all ss springs etc.only wish backing plate had holes front @ back for fresh water flush. they have a hole for fw flush, but only on one side. other than that, a well made @ coated marine brake.



by:

Ordered both left and right assemblies. These look great and bolted right up. Adjusted easily. Only trouble with these is my brake line fitting would not thread into the wheel cylinder. I had to re-tap the holes on both sides. I first thought it was just some oversight on the first assembly, but when I had to do it on both of them, then that made me start to wonder. If you order these, don't be suprised if you also need a 1/8-27 NPT to run in the wheel cylinder ports. I'm sure I will like these much better than the original rusted steel assemblies that these replaced. Time will tell.



by:

This product is better than buying just wheel cylinders and brake shoes. The price made me skeptical of the quality, but these appear to be the real deal. They come fully assembled down to the contact points being already lubed. The shipping was unbelievably fast and everything was packed carefully and suitably to protect the products from damage in shipping. It is very evident that the employees at etrailer.com care about their products and customers.



by:

I have been very pleased with all the products that i have ordered from etrailer. The delievery has been faster then i had anticipated. I highly recommend anyone that is looking for trailer products, to look around on your web site first.



by:

Very happy with products, seem to be good quality and are exact match for a 15 yr. trailer. Everyone that I talk to is very professional and helpful. Will have no problem doing business with this company again.



by:

0ne unit fixed all. quick service, in 4 days received
parts, parts look good, and worked great after installation.



by:

Everything checked out pretty well. It all fit as it should and seems to be as same quality as what was removed. looking forward to using etrailer again for parts.

Thank you,
Jeysson



by:

The customer service was excellent. The parts were correct and delivered fast and in perfect condition.



by:

Excellent products and customer service bar none. Anna was extremely helpful and very communicative. Thank you for the wonderful experience.



by:

All parts ordered were of excellent quality, Thanks!



by:

Installed easily. Work fine.



by:

Good deal.



by:

Thanks for the fast delivery and great product at a fair price.



by:

Great service and delivery was fast!!!! Took advantage of free shipping.



by:

Better than I expected. The somethings Wrong never happened.



by:

Nice product with a really nice price!



by:



by:


22
22

See what our Experts say about this Dexter Accessories and Parts

  • Troubleshooting Brakes Not Working on 1984 Holiday Rambler with Surge Brakes
    There are several possibilities that could be causing your brakes to not function properly. Is there a certain reason you believe the issue to be the master cylinder? Poor braking performance may not mean a faulty master cylinder. The first thing you will want to check is the brake adjustment. It could be that the brakes need to be adjusted and so they are not functioning. Another option is to take the hub off to inspect the brake pad to see how much brake pad is left. This is a good...
    view full answer...
  • Recommended Replacement Trailer Brakes, Brake Drums and Hydraulic Coupler for Boat Trailer
    The Timbren Axle-Less suspension system you mentioned is compatible with the brake hub/drum # 8-201-51UC3-EZ and the # T4489500 right hand and # T4489600 left hand free backing brake assemblies. The brake drums are galvanized and the brake assemblies have a Galphorite plating for corrosion protection. The brake drum has a 6 on 5-1/2 inch wheel bolt pattern. It sounds like you're interested in a hydraulic or surge coupler. I'd recommend the Dexter Drop-N-Go Brake Actuator, part # 099-175-00...
    view full answer...
  • Comparing Demco and Titan 12 x 2 Inch Hydraulic Drum Trailer Brakes
    The difference in price, besides being from two different manufacturers, is the materials. Demco assembly # 42028 is galvanized steel. Titan assembly # T4489600 is Galphorite plated steel. So you could say that a galvanized material is superior to a plated one though the Galphorite is certainly a fantastic product. It also has a better warranty. The matching Titan right hand side assembly is # T4489500. Other than that there isn't a reason why you couldn't use either one provided they...
    view full answer...
  • Parts Needed To Convert Electric Drum Brakes To Hydraulic Disc Brakes On 5th Wheel Trailer
    We do have a hydraulic disc brake kit that will fit 8 bolt hub, 8 on 6-1/2 Inch bolt pattern, 1/2 inch bolts. In addition to a hydraulic disk brake kit, you will also need a brake line kit, and a electric over hydraulic actuator, and a brake controller that is compatible with electric over hydraulic brakes. For a disc brake kit to replace your drum brake assembly, you will need the Kodiak Disc Brake Kit, part # K2HR712, which is designed for 7,000 lb axles, 16 Inch or larger wheels. This...
    view full answer...
    Image 1 for
  • How to Identify Capacity of Axles on 2009 Keystone Sydney 31KFW
    The quickest and easiest way to identify your axle capacity is by the wheel bearings. If you can get me the reference numbers from your inner and outer bearings, I should be able to easily determine your axle capacity. The bearing numbers are stamped into the bearing cage as shown in the photo I have edited for you. Once the capacity is known, I can recommend replacement hubs and brake assemblies.
    view full answer...
    Image 1 for
  • Trailer Disc Brake Venting Design
    Slotted rotors do a great job dissipating heat on disc brake systems. Trailer brakes do create heat, but the venting between both sides of the rotors is sufficient for dissipating heat for trailers. I attached a page that has all of the disc brake systems we offer for trailers. Typically only performance vehicles come with slotted rotors. Most vehicles that are used for just regular everyday driving use rotors just like the ones in the link I attached.
    view full answer...
    Image 1 for
  • How Does Brake Controller Wire to Vehicle and Trailer as Well as Charge Circuit for Trailer
    The brake controller needs to be have power and ground ran to it on the black and white wires, the red wire runs to the stoplight circuit that only has voltage when brakes are applied, and blue runs to the 7-way to connect to the trailer brakes. To charge the battery you'd need to run 10 gauge wire to the positive post of the battery like with part # 10-1-1 which we sell by the foot and then for a circuit breaker part # 9510. I attached a help article on installing brake controllers for...
    view full answer...
  • Compatibility of Dexter # K71-651 Electric over Hydraulic Brake Actuator with GM OEM Brake Control
    According to Dexter Axle, beginning with the 2015 model year, the GM OEM brake controller will be compatible with the Dexter Electric Over Hydraulic Trailer Brake Actuators like part # K71-651. Previous model years weren't compatible, and would need to use an aftermarket brake controller. I really like the Tekonsha P3, part # 90195. The P3 has a setting that makes it compatible with electric over hydraulic actuators, and is very easy to use and to set up. I really like the fact that the...
    view full answer...
  • Can 6,000 Pound Hydraulic Trailer Brake Assemblies be Used on a 5,200 Pound Axle
    The more pricey Demco Hydraulic Brake Assemblies, like # 42028, are designed for marine applications meaning it uses corrosion resistant materials to minimization or eliminate corrosion. The materials are more expensive which makes the assemblies cost more. For non-marine trailer applications, the Titan Free-Backing Hydraulic Trailer Brake Assembly, # T4489600, and # T4489500, would work just fine. These assemblies are rated for use on up to 6,000 pound axles, so you could use them on...
    view full answer...
  • Free-Backing 12 x 2 Drum Brake Drags When Moving Forward on Karavan Boat Trailer
    Thank you for providing the photo of the left-hand brake assembly on your boat trailer. The bolt that attaches your actual brake shoe to the shoe lever arm should be tight, but we do not have an actual torque specification. It is intended that the bolt provide a pivot point for movement between those two parts. After examining your photo and comparing it to all of the free-backing 12 x 2 brake assemblies we offer I noticed that one of the springs on your brake appears to be in an incorrect...
    view full answer...
    Image 1 for
  • How to Select Replacement Hydraulic Drum Brake Assembly for Calkins Boat Trailer
    You can choose a correct replacement hydraulic drum brake by matching up a few characteristics to yours. You need to match up axle weight capacity (usually found on a sticker or plate on the axle), the drum diameter and width, and your brake mounting bolt pattern. You can click on the link provided to see our main page for hydraulic drum brakes. First, click on the axle rating, then your drum size. Most of our brake assemblies, such as Demco Hydraulic Free Backing 10 x 2-1/4-inch brake...
    view full answer...
  • Restoring Damaged Brakes and Lights on 1984 Holiday Rambler Trailer Left Stationary for 15 Years
    It is not at all unreasonable that a travel trailer left idle for 15 years will need lots of TLC, including brake and lighting components, plus potentially others. Even in the best storage conditions, 15 years can wear heavily on things like wiring, lights, brake assemblies and other trailer systems like water and sewage. My online research of 1984 Holiday Rambler 32-foot travel trailers reveals that several were offered in the 32-foot length, the Ambassador, Imperial and Presidential...
    view full answer...
  • Electric Brake Conversion for 1984 Holiday Rambler Aluma-Lite Tow Behind Travel Trailer
    According to my research the 1984 Aluma-Lite travel trailers had hydraulic drum brakes. You can use the Titan Hydraulic Brake Kit - Free Backing - Galphorite - 12" - Left/Right Hand Assemblies - 6K # T4489600-500 like the # T4489500 you asked from as a replacement option. You will need look at the mounting flange for your brake assemblies to confirm this fit as I don't have that specific information available. If you have 5 bolts this is the correct size, but if you have 4 let me know...
    view full answer...
  • Troubleshooting Kodiak 225 Trailer Brake System that Keeps Breaking Calipers In Half
    I spoke to my contact at Kodiak about the issue you are having and he said that sometimes if a trailer braking system is doing way too much of the braking the pressure can get too high for the calipers and they can break (not brake). He said that the trailer's brakes are designed as a supplement for the vehicle's braking and they are not intended to do the majority of the braking for the towing setup.
    view full answer...
  • Compatibility of Dexter and Titan Brake Assemblies
    No worries about the compatibility. Since the assemblies are the same size and the bolt patterns are identical, the Titan Galphorite Free-Backing Hydraulic Trailer Brake Assembly, part # T4489500 will work great on your boat trailer.
    view full answer...
  • How to Determine Which Brake Pads Work on my Trailer?
    The replacement brake pads you need are determined by the caliper that you have on your trailer. The Kodiak Ceramic Brake Pads # K250CP fit any Kodiak caliper with the 250 stamped on them. If you have a different caliper and/or a different sized axle these likely won't fit in your existing calipers. If you can let me know what type of caliper you have or what axle you have on your trailer, I can recommend the correct replacement brake pads for you- pictures also work.
    view full answer...
  • Replacement Hydraulic Brake Assemblies and Drums with 008-201-09 Casting Number for Boat Trailer
    The 008-201-09 number you provided comes back on a Dexter Axle hub that we offer as part # 8-201-9UC3-EZ, a 12 x 2 inch brake drum. This hub uses a 25580 inner and 15123 outer bearing, so please check the reference numbers on your existing bearings to confirm that this hub is compatible. These hubs use a grease seal with a 2-1/8 inch inner diameter. Since it's kind of difficult to measure the inner diameter of a used grease seal, measure the OD of the spindle where the grease seal rides....
    view full answer...
  • Titan Brake assembly 12 x 2 Free Backing for Boat Trailer
    Painted drum brake assemblies are not usually recommended for use in marine applications. The Titan Galphorite Free-Backing Hydraulic Trailer Brake Assembly - 12 inch, item # T4489500, right hand and, item # T4489600, left hand are the brakes I would recommend for your boat trailer. These assemblies are complete and ready to bolt on to your trailer brake mounting flange and are galphorite plated to resist the corrosion caused from backing the trailer into the water to launch the boat. I...
    view full answer...

Do you have a question about this Accessories and Part?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Robert G
Expert Research:
Robert G
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Hannah L
Updated by:
Hannah L
Employee Manda E
Updated by:
Manda E

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.