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  1. Trailer Brakes
  2. Dexter
  3. Hydraulic Drum Brakes
  4. 6000 lbs Axle
  5. 12 x 2 Inch Drum
  6. 14-1/2 Inch Wheel
  7. 15 Inch Wheel
  8. 16 Inch Wheel
Dexter Hydraulic Brake Kit - Free Backing - Galphorite - 12" - Left/Right Hand Assemblies - 6K

Dexter Hydraulic Brake Kit - Free Backing - Galphorite - 12" - Left/Right Hand Assemblies - 6K

Item # T4489600-500
Our Price: $216.21
Trailer Brakes
This item qualifies for Free Shipping
Shipping Weight: 30 lbs
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Drum brake assemblies provide superior protection from corrosion and let you reverse without actuating. Designed for use with hydraulic brake actuators that do not include reverse lockouts. Fit most 14-1/2", 15" and 16" wheels. Great Prices for the best trailer brakes from Dexter. Dexter Hydraulic Brake Kit - Free Backing - Galphorite - 12" - Left/Right Hand Assemblies - 6K part number T4489600-500 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (16)
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Dexter Trailer Brakes - T4489600-500

  • Hydraulic Drum Brakes
  • 6000 lbs Axle
  • 12 x 2 Inch Drum
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • 16 Inch Wheel
  • Boat Trailer
  • Snow Trailer
  • Free Backing
  • Dexter

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


  • Hydraulic drum brake assemblies are designed for use with a surge-type trailer brake actuator
  • Free-backing design lets you reverse without trailer brakes being activated
    • Hydraulic pressure is contained by wheel cylinder
    • Brake shoe turns and releases pressure when reversing
  • 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 - nearly rustproof
    • Wheel cylinders are treated with hot black oxide
    • Internal components are olive drab, zinc plated
    • Stainless steel springs
  • Adjuster plugs (included) cover access holes to keep dirt and grime out of the assemblies and off of the shoes
  • Left-hand (driver's-side) brake assembly and right-hand (passenger's-side) brake assembly included
    • Mounting bolts and hardware sold separately


  • Dimensions: 12" diameter x 2" wide
  • Pad lining: 46 sq in
  • Wheel size: 14-1/2", 15" or 16"
  • Mounting flange bolt pattern: 5 bolt
  • Center hole diameter: 3-1/4"
  • Axle rating: up to 6,000 lbs
  • 1-Year 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.

T4489600 Dexter Premier Freebacking Brake Assembly - 12" x 2" - Left

T4489500 Dexter Premier Freebacking Brake Assembly - 12" x 2" - Right

Replaces Titan Hydraulic Brake Kit - Free Backing - Galphorite - 12" - Left/Right Hand Assemblies - 6K

Customer Satisfaction Score:

Customer Reviews

Dexter Hydraulic Brake Kit - Free Backing - Galphorite - 12" - Left/Right Hand Assemblies - 6K - T4489600-500

Average Customer Rating:  4.8 out of 5 stars   (16 Customer Reviews)

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


I rebuilt an old boat trailer that has been sitting outside for 10 years. It was in really bad shape & I could not read any of the bearing numbers, all had had was the dimension of the hub & the old bearings. Stacey A. at etrailer was very helpful in getting the right parts I needed & best of all when I got my parts they all fit. The brake kit was great just bolt them on. Very quick shipping & great service.



Brakes work fine. Got freebacking so i can easily back the boat trailer up without dealing with the brakes locking up. Long story short the freebacking doesnt work worth a crap and i shouldve gone non freebacking and saved the money


Great brake set up. Are used them on a tandem axle galvanize trailer that sees a lot of salt water. I installed a freshwater rinse but realistic you’ll get five years out of them if you use it as often as I do. Cheap insurance for stopping a 8000 pound trailer and boat.


Working great, tested them again today when my 30' proline was a bit short of being full up. Drove about 5 mph, hit the breaks hard, and these brakes (surge) locked the tires up as expected, and bumped the boat forward just enough. Everything I've received from Etrailer has worked as expected.


Just what I needed, works great & perfect fit, priced right.


Chris was very knowledgeable about the products that I was looking for and made sure I had everything I needed to get my trailer brakes back working.


Excellent products and super fast delivery
as always. Used price pledge guarantee and was issued a refund immediately. Will continue to do business with etrailer. Thank you!


Excellent brake drum kit. Easy to insta ll!


Great web site and super fast delivery. I will recommend etrailer to all my friends.


Fit perfectly, very high quality , quick shipping, excellent value. Really pleased


Great product and so reasonably priced!!!! Great service. Shipped and received within 4 days. Thanks so much. I'm so glad I found your company.


Received the parts on time as promised. All parts fit and work great. Thank you.


Received as advertised and as ordered





See what our Experts say about this Dexter Trailer Brakes

  • Installation of Replacement Brake Assemblies on 2006 Karavan Boat Trailer for a Bayliner 185
    There really arent any tricks to installing hydraulic brake assemblies like the Titan Free-Backing Hydraulic Trailer Brake Assemblies # T4489600-500. As long as this is the correct assembly for your setup you would just need to bolt it in place and then attach the brake line to the back of the assembly and then bleed the brakes and you would be ready to go. To bleed the brakes you will need to first top off the master cylinder with appropriate fluid. Next you will want to pump the fluid...
    view full answer...
  • Trailer Brake Assemblies for a 2006 Karavan Boat Trailer with a 2006 Bayliner 185 BR
    If the specifications for the Titan Free-Backing Hydraulic Trailer Brake Assemblies # T4489600-500, match your existing brake assemblies, then it will fit on your trailer. The specifications are as follows. 12 inches wide x 2 inches thick Fits Wheel sizes 14-1/2 inches, 15 inches, or 16 inches Mounting flange bolt pattern 5 on 3-7/8 inches Center hole diameter 3-1/4 inches For axles rated up to 6,000 pounds
    view full answer...
  • What is Meant by Left and Right Side for Trailer Brake Assemblies
    Left = driver's side Right = passenger's side We generally do not use the terms driver's or passenger's side since trailers don't have drivers, etc. For brake set # T4489600-500 the shorter shoes will face towards the front of the trailer.
    view full answer...
  • What Type of Brake Fluid Should Be Used with the 12" Titan Hydraulic Brake Kit
    The brake fluid specifications for the surge brake system usually comes from the actuator but we can only recommend using DOT (Usually 3/4) fluid with the Titan Hydraulic Brake Kit part # T4489600-500 as outlined my the manufacturer.
    view full answer...
  • Are 12 x 2 Titan Hydraulic Brakes Replacements for DICO 12 x 2 Hydraulic Brakes
    The free backing Titan Hydraulic Brake Kit # T4489600-500 are indeed a replacement for DICO brakes that measure 12" x 2" so they will work for you. You just need to make sure you need a capacity for a 6,000 lb axle and have a 5-bolt mounting flange. To mount these brakes you will need the Mounting Bolts and Hardware # BRKH12. I have added a link to a video review for you to check out as well of the Titan Hydraulic Brake Kit # T4489600-500.
    view full answer...
  • Replacement Brake Assemblies, Actuator and Brake Line for 1994 Ramlin Boat Trailer
    Based on what you listed the correct brake assemblies you'd want is the part # T4489600-500 which is a kit for the left and right hand side assemblies you need. For a actuator the Demco drum actuator part # DM72VR would be a really great option. It has a 7k trailer capacity, fits a 2 inch ball, and has the easiest and most reliable coupler mechanism as well. Then for a single axle brake line kit the Kodiak kit part # 18SI-BLKIT would work great. It's all flexible hose which is the easiest...
    view full answer...
  • Is It Better To Replace 12 x 2 Trailer Brake Shoes Or Replace The Entire Assembly?
    The difference between the Titan Replacement Brake Shoes # T4798400 and # T4807700 is which brake assemblies the kits fit on. The # T4798400 fits brake assemblies # T4489600-500 where the # T4807700 fits discontinued braking assemblies T4203000. Both of the kits are per wheel and in general there is not a large cost difference between the replacement shoes and complete replacement braking assemblies. Due to that we recommend going ahead and replacing the entire braking assemblies using...
    view full answer...
  • Does Titan Hydraulic Brake Kit # T4489600-500 Come with Hubs/Drums
    The Titan Hydraulic Brake Kit # T4489600-500 that you referenced does not come with hub/drums. Since this is a 6k axle brake kit the correct hub/drum you'd need is the Dexter part # 8-201-9UC3-EZ which would fit the same spindle as what the Titan brake kit you mentioned would have been designed for.
    view full answer...
  • Parts Needed To Replace Hydraulic Braking System On Boat Trailer
    Hydraulic systems are preferred on boat trailers because water and electricity do not mix well. The hydraulic surge brake system is self contained on the trailer and the only connection to the vehicle is the reverse lockout switch that is powered through the trailer connector. This switch keeps the surge coupler from locking the brakes on the trailer when you are backing up. I know that you told me that your boat weighs 6k, however I need your help to identify the axle so we can select...
    view full answer...
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  • 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...

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Info for this part was:

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Expert Research:
Michael H
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Expert Research:
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Employee Cole B
Installed by:
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Written by:
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