The Demco Hydraulic Trailer Brake Actuator part #DM72VR should be a direct replacement for the Atwood 61101 Brake Actuator that you have now. This newest updated it rated at 7K instead of 6K. This is a bolt on option that mounts on 3" centers.…
The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…
The Hydrastar Vented Marine Electric Over Hydraulic Actuator for Disc Brakes #HS481-8067 is designed to be completely plug-and-play so the female end of the 7-way would need to connect to the 7-way cable that's already installed on the trailer…
Hi Joseph, the 3,500 pound rating on part #C80136 is for each individual safety cable, not the pair. That said, the ratings are not added together, so the maximum weight of the vehicle or trailer being towed still cannot exceed 3,500 pounds. The…
For as trashed as those brake assemblies are I am impressed with how spotless that spindle is! Based on the bearing numbers you mentioned you have a #84 spindle and the hub part #AKHD-545-35-G-K is correct. Since this its galvanized it's a really…
Hey Clay, if the bolt pattern of your boat trailer does not match what is on the Demco actuator part #DM8104311 you have the option to redrill holes on the trailer to match the actuator or you can have the actuator welded to the trailer. I'd…
Hey Wendell! Thanks for getting back to me with all that information! I recommend the Kodiak Disc Brakes - 10" Hub/Rotor item #KOD67FR. These hubs have a corrosion-resistant Dacromet finish that stands up great in both freshwater or saltwater.…
Not another one! Just kidding Dirk! I was in the Marines I enjoy these conversion questions on the M1101 trailers. I'd be more than happy to list the parts you need, along with quantity, and confirm compatibility. 1 - Timbren Axle-Less Trailer…
The replacement I recommend for an Atwood Surge Brake Actuator 85778 is the Demco Hydraulic Brake Actuator part #DM62VR. It has the same ball size, offers a bolt-on install, and has a greater capacity. The only difference is it has an electric…
For a Four Winns Boat Trailer with Titan Aero 6000 Surge Brake Actuator, I recommend replacement using the Titan Zinc-Plated, Leverlock Brake Actuator part #099-175-20 which is ready to go as is and will be a great fit. The reason I recommend…
That's a really good question, and there is a difference between the 7,500 lb Dexter DX7.5L A-60 actuators for disc brakes; the differences are both in what they fit, as well as their length. - 14" Long & Top-Mounted For 3" Wide…
The Demco Hydraulic Trailer Brake Actuator part #DM72VR should be a direct replacement for the Atwood 61101 Brake Actuator that you have now. This newest updated it rated at 7K instead of 6K. This is a bolt on option that mounts on 3" centers.…
The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…
The Hydrastar Vented Marine Electric Over Hydraulic Actuator for Disc Brakes #HS481-8067 is designed to be completely plug-and-play so the female end of the 7-way would need to connect to the 7-way cable that's already installed on the trailer…
Hi Joseph, the 3,500 pound rating on part #C80136 is for each individual safety cable, not the pair. That said, the ratings are not added together, so the maximum weight of the vehicle or trailer being towed still cannot exceed 3,500 pounds. The…
For as trashed as those brake assemblies are I am impressed with how spotless that spindle is! Based on the bearing numbers you mentioned you have a #84 spindle and the hub part #AKHD-545-35-G-K is correct. Since this its galvanized it's a really…
Hey Clay, if the bolt pattern of your boat trailer does not match what is on the Demco actuator part #DM8104311 you have the option to redrill holes on the trailer to match the actuator or you can have the actuator welded to the trailer. I'd…
Hey Wendell! Thanks for getting back to me with all that information! I recommend the Kodiak Disc Brakes - 10" Hub/Rotor item #KOD67FR. These hubs have a corrosion-resistant Dacromet finish that stands up great in both freshwater or saltwater.…
Not another one! Just kidding Dirk! I was in the Marines I enjoy these conversion questions on the M1101 trailers. I'd be more than happy to list the parts you need, along with quantity, and confirm compatibility. 1 - Timbren Axle-Less Trailer…
The replacement I recommend for an Atwood Surge Brake Actuator 85778 is the Demco Hydraulic Brake Actuator part #DM62VR. It has the same ball size, offers a bolt-on install, and has a greater capacity. The only difference is it has an electric…
For a Four Winns Boat Trailer with Titan Aero 6000 Surge Brake Actuator, I recommend replacement using the Titan Zinc-Plated, Leverlock Brake Actuator part #099-175-20 which is ready to go as is and will be a great fit. The reason I recommend…
That's a really good question, and there is a difference between the 7,500 lb Dexter DX7.5L A-60 actuators for disc brakes; the differences are both in what they fit, as well as their length. - 14" Long & Top-Mounted For 3" Wide…
Very helpful/friendly Customer Service. Competitive Pricing. Shipping was Fast.
John
Mankato, MN
Brake Actuator with No Lockout for Surge Brakes
Built for straightforward surge braking, these brake actuators use a no lockout design that keeps the setup simple. Pair with free-backing brakes or add a reverse solenoid if you need to back up without the brakes engaging. Check your trailer tongue size (like 3" wide) and mounting pattern—some replacements may need drilling or welding on older or non-standard tongues.
Expect basic tools and possible fabrication. Some swaps required cutting off a weld-on unit, drilling an extra hole, or switching to a pin lock. To bleed, pump the emergency pull line and hold pressure, then crack the furthest wheel first. Before towing, confirm fittings are tight and small hardware like cotter pins is installed.
Yes, without a lockout, free-backing brakes help prevent the brakes from engaging in reverse. If you don't have free-backing brakes, add an electric reverse lockout solenoid wired to the reverse lights. Otherwise the trailer brakes can try to stop you when backing up a hill.
Surge hydraulics can make braking feel smooth and automatic across different tow vehicles. Trailers can slow down predictably when the tow vehicle stops. Bleed the master cylinder first and then each wheel, starting with the furthest, to keep braking consistent and responsive.
Measure your tongue and hole spacing first. Some actuators fit 3" square tongues; non-standard tongues may need welding or an extension. Bolt patterns don't always match, so plan for drilling new holes. Also check coupler height/angle since a change can require adapting the brake line plumbing.
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