Bolt Hole Specs of the Demco Hydraulic Brake Actuator DM8104311
Updated 07/21/2026 | Published 06/05/2020
Question:
Hi, Im interested in the DEMCO DM8104311. Can you send me the spec sheet so I can make sure it matches up with my setup?
asked by: Vadim
0
Expert Reply:
The Demco Hydraulic Brake Actuator part # DM8104311 is a fit for trailer tongues 3" wide. If this is what you have then it will work well. If you are however looking for the bolt hole spacing then you can reference the attached photo.
expert reply by:
Conner L
0
click to enlarge
Product Page this Question was Asked From
Demco Surge Brake Actuator w Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 12.5K
- Brake Actuator
- Surge Brake Actuator
- Boat Trailer
- Construction Trailer
- Farm Trailer
- Travel Trailer
- Utility Trailer
- Bolt-On
- 12500 lbs GTW
- 2-5/16 Inch Ball Coupler
- 3 Inch Channel Tongue
- Disc Brakes
- Electric Lockout
- Demco
more information >
Featured Help Information
Instructions
Continue Researching
- Search Results: brake actuator
- Search Results: surge brake actuator brake actuator
- Shop: Demco Hydraulic Brake Actuator w/ Drop - Drum - Zinc - 2-5/16" Ball - 12,500 lbs
- Shop: Demco Surge Brake Actuator w Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 12.5K
- Search Results: grease seal 1036
- Search Results: boat trailer bearing kits
- Search Results: trailer bearings races seals caps
- Search Results: surge brake lines
- Search Results: trailer brakes
- Video: etrailer Rust-Resistant 4-Leaf Slipper Spring for 4,300-lb Trailer Axles Review
- Video: All About the Demco Hydraulic Brake Actuator w/ Drop
- Q&A: Disc Brake Upgrade on a 2012 Tandem Axle Boat Trailer
- Shop: Replacement Trailer Wheel Bearing Kit, Bearings 15123/ 25580, Races 15245/25520 Races, 10-36 Seal
- Shop: Kodiak Disc Brake Kit - 12" Hub/Rotor - 6 on 5-1/2 - Dacromet/KodaGuard - 5,200 to 6,000 lbs
- Shop: Kodiak 12" Hub-and-Rotor Assembly - 6 on 5-1/2 - Dacromet - 5,200 lbs to 6,000 lbs
- Q&A: Recommended Coupler Lock To Lock Demco Surge Brake Coupler DM8104311 To Tow Vehicle
- Q&A: Looking for Brake Line Kit that Fits TA96BT 23-27 EZLoader Boat Trailer
- Shop: Dexter Zinc-Plated Brake Actuator - Drum - 2-5/16" Ball - Bolt On - 12,500 lbs
- Q&A: What is the Length of the 12.5K Demco Hydraulic Disc Trailer Brake Actuator
- Shop: etrailer Hydraulic Trailer Brakes - Free Backing - E-Coat - 12" - Left/Right - 5.2K to 7K
- Q&A: Replacement Surge Brake Coupler For Aluminum Boat Trailer With 10,000LB Coupler
- Q&A: What Is The Recommended Tongue Size For The Dexter DX7.5L A-60 Brake Actuator DX89FR
- Q&A: What Size Fitting Is on the Demco Hydraulic Brake Actuator DM8104311
- Video: Kodiak Disc Brake Kit Review
- Video: Breaking Down the Kodiak 12" Hub-and-Rotor Assembly
- Video: Detailed Breakdown of the Dexter DX7.5L A-60 Brake Actuator w Electric Lockout
- Video: Bearing Kit, 15123/ 25580 Bearings, 10-36 Seal Review
- Video: All You Need to Know About the Kodiak Disc Brakes
- Shop: Trailer Hitch
William
7/20/2026
How much frame length does the DM8104311 use? I need to know if I will still have room for the trailer jack.