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Expert Answers about GMC Brake Actuator


  • Will the Titan Zinc-Plated Brake Actuator # T43397007K Activate 4 Brake Assemblies
  • Yes, as long as the brake assemblies on your trailer are drum brakes the Titan Zinc-Plated Brake Actuator # T43397007K will work activate 4 brake assemblies. I attached a review video for this actuator for you to check out as well.
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  • PSI Rating for Titan Zinc-Plated Brake Actuator
  • Surge actuators like the Titan Zinc-Plated Brake Actuator # T4745720 mentioned in your question do not have an actual PSI rating. The disc unit will operate between 1,400 to 1,500, and with no residual back pressure. The actual PSI varies with weight of trailer, tire size, speed, braking ability of tow vehicle, and type & length of brake lines. Only electric over hydraulic actuators can be set to an exact PSI.
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  • Replacement Surge Brake Actuator for a Tie Down Engineering LP80 For Disc Brakes
  • The best option to replace your Tie Down Engineering Model LP80 actuator is the Dexter DX7.5 Drop-N-Go Brake Actuator item # 099-175-20 you were looking at. This actuator has a 7,500 lbs capacity and is rated for disc brakes. It fits a 2" hitch ball and mounts on a 3" wide channel tongue.
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  • Which Surge Brake Actuator Works w/ 2,000 lbs Disc Brakes?
  • For a set of 2,000 lbs disc brakes, you will want to use the Titan Zinc-Plated Brake Actuator w/ Electric Lockout item # T4745720. This is our lowest capacity disc brake actuator and even though it is rated for a 6,000 lbs trailer it will work perfectly with a lower weight.
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  • Replacement Surge Brake Actuator For Atwood 61101
  • Yes, there is! To replace your Atwood 61101 coupler, I recommend the Demco Hydraulic Brake Actuator w/ Electric Lockout item # DM62VR. This actuator is plated in zinc which means you won't have to deal with the actuator corroding. The Demco actuators have what is called an EZ-Latch system, which means you just drop the actuator's coupler over the hitch ball and it snaps right in place. The electric reverse lockout will let you back up without engaging your trailer brakes. The Demco Hydraulic...
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  • Do Brake Actuator Master Cylinders Have Weight Capacities
  • The weight capacity is determined by the actuating coupler itself, and not just the master cylinder. Master cylinders are specific to the actuator models. Most of the Model 10 couplers have a weight capacity of 12500 lbs. If you are looking for a replacement master cylinder for your Model 10 actuator, we do offer the replacement master cylinder for drum brakes, part # DX66FR. We also offer a replacement master cylinder for a disc brake Model 10 actuator. That part number is # T4749501042....
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  • Replacement Brass Connector for Dexter Disc Brake Actuators
  • Since Tiedown is out of business I wasn't able to find what size of a fitting goes on the back of the brake actuator. I am pretty sure that is a common size amongst actuator fittings though. The Replacement Brass Connector for Dexter Disc Brake Actuators item # T4750300 you were looking at is a 1/8" to 3/16" fitting. This would be our only replacement option. Sorry I don't have more specific information. The parts brake down in the manual for the Tiedown 750 doesn't have that part listed...
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  • What is the Size of the Mounting Holes on Titan Model 10 Brake Actuator 4857220
  • The 3 holes on the tongue mount of the Titan Brake Actuator w/ Electric Lockout # T4857220 are 17/32" in diameter; the larger holes are 21/32" in diameter.
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  • Replacement Drum Brake Actuator for a Titan Aero 6000
  • I have a replacement for your Titan Aero 6000 actuator. I recommend the Dexter Brake Actuator with Manual Lockout item # T63FR. This actuator is rated for trailer's up to 7,500 lbs and has a 2" ball coupler. Dexter bought out Titan a few years back so this is as close of a direct replacement as there is.
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  • Replacement Master Cylinder for a UFP A-60/A-75 Surge Brake Actuator
  • We do have Dexter brand master cylinder replacements for the model # UFP 60/A-75 brake actuators. I have listed both options below depending on what type of brakes you have: Drum Brakes - Replacement Master Cylinder Assembly for Dexter Brake Actuators item # TK71-756-00 Disc Brakes - Replacement Master Cylinder Assembly for Dexter Brake Actuators item # DX44FR
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  • Brake Fluid Capacity of HydraStar Electric Over Hydraulic Actuator for Disc Brakes
  • I reached out to the manufacturer who told me the HydraStar Electric Over Hydraulic Actuator for Disc Brakes # HBA16 has a fluid capacity of 10 oz. They told me that was going to be more than ample capacity to allow for brake pad wear once the brakes are bled and the unit is topped off. I have added links to video reviews of this actuator for you to take a look at.
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  • Dimensions of Titan Brake Actuator with Manual Lockout # T63FR
  • The Brake Actuator # T63FR is 20" long and fits a 3" frame. The width of the outer case is 3-1/2" and it is 4" tall. I do recommend getting an extra Lockout Key # DX94FR as these are quite small and can easily be lost.
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  • Will 6,000 lb Surge Brake Actuator for Drum Brakes Work on Single Axle Boat Trailer
  • The Demco Hydraulic Brake Actuator # DM8609101 will work great for you; the 8,000 lb tow rating and 800 lb tongue weight rating are just the maximum capacities for the actuator and you won't have an issue with your single-axle boat trailer being under that weight rating. The Demco # DM8609101 actuator is designed for use with trailers that have drum brakes and it will fit a 2 inch hitch ball, which you'll want to also keep in mind.
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  • Dimensions of Demco Hydraulic Drum Brake A-Frame Actuator DM8609502
  • Demco Hydraulic Drum Brake Actuator # DM8609502 is a standard 50-degree A-frame coupler-actuator rated for 8000-lbs trailer weight as you noted. It has a primed finish and is intended for weld-on installation. I went to our warehouse and measured the front-to-back length of the main triangular mounting plate, from the narrow forward end to the wider back end. This front-to-back length is 12-inches and this is shown on the linked photo along with some other key dimensions.
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  • Recommended Replacement for a Atwood 84132 Drum Brake Actuator
  • The replacement for the Atwood Model 84132 is the Demco Hydraulic Brake Actuator item # DM72VR. Like the Atwood this brake actuator is for drum brakes. For disc brakes you would want to use the Demco item # DM62VR. Both of these actuators fit a 3" wide trailer tongue and can be bolted on. They have a 7,000 lbs capacity and fit a 2" hitch ball. I have linked an installation video below. To convert your Holsclaw Boat Trailer to disc brakes you will need to replace the hubs. To recommend...
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  • How Many Brake Assemblies Can Be Operated by Dexter EOH Drum Brake Actuator K71-650
  • The Dexter DX Series Electric Over Hydraulic Brake Actuator for Drum Brakes, part # K71-650, is suitable for use with single-, tandem- or triple-axle trailers with hydraulic drum brakes. The unit installs on the trailer frame and connects to the trailer's wiring and hydraulic brake lines. The wiring configuration is Black: 12-volt power; Blue: brake controller; Yellow: breakaway and White: ground.
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  • Dimensions of Hydrastar Electric Over Hydraulic Actuator for Disc Brakes
  • The Hydrastar Electric Over Hydraulic Actuator for Disc Brakes # HBA16 is 11-3/4" long, 7-3/8" tall and 3" wide at it furthest points(see image).
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  • Length of 20k Demco Hydraulic Brake Actuator DM8204311
  • Yes I can; as you can see the mount portion measures 7 inches and the portion behind it measures 9-1/4 inches for the Demco disc brake actuator you asked about, which is the following part number: - Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 20K # DM8204311
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  • How Much Brake Fluid Is Needed For Titan BrakeRite Electric Over Hydraulic Brake Actuator?
  • According to Dexter the BrakeRite # T4813102 actuator holds 0.7 quarts of DOT 3 or 4 brake fluid. Do remember this is only for the reservoir on the actuator itself. It does not include the amount of fluid you will need for the brake lines, and calipers or servos. The length and inner diameter of all the brakes lines along with the types of brakes is going to be different from trailer to trailer. If unsure of how much total fluid to get to fill all the lines and brakes you can should overestimate...
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  • What Size Brake Line Should be Used with the Titan Actuator part # T4750800
  • The Titan actuator part # T4750800 that you referenced is designed to work with the standard trailer brake line size of 3/16 inch like what comes with the part # DM5425.
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