Do Demco Surge Actuator Couplers and Straight Tongue Couplers Have Same Bolt Pattern
Updated 06/25/2026 | Published 06/22/2026 >
Products Featured in This Question
Question:
I have Demco Hydraulic Trailer Brake Actuator - Drum Brakes - Zinc Plated - 2 Ball - 6,000 lbs ITEM 8605001, and the replacement option is Demco Hydraulic Brake Actuator - Drum - Zinc - 2 Ball - 7,000 lbs Part Number: DM72VR However I switched to Electric Brakes and no longer need it and would like to install a Demco Channel Tongue Trailer Coupler - eZ-Latch - Zinc - 2 Ball - Bolt On - 7,000 lbs Part Number: DM15945 However there is no bolt pattern information for a 3 inch tongue 3 bolt. I dont want to assume its same pattern as mentioned above with the 3 3 bolt to 1 7/8 inch to lower bolt that is triangled.
asked by: Curtis F
Expert Reply:
Product Page this Question was Asked From
Demco Channel Tongue Trailer Coupler - eZ-Latch - Zinc - 2" Ball - Bolt On - 7,000 lbs
- Straight Tongue Trailer Coupler
- Standard Coupler
- 2 Inch Ball Coupler
- Bolt-On
- 7000 lbs GTW
- 3 Inch Channel
- Auto Latch
- 3-Bolt
- Marine Grade
- Demco
more information >
Continue Researching
- Search Results: trailer wiring
- Search Results: trailer wire
- Search Results: 7 pin connector
- Search Results: 7 pin plug
- Video: All About the Demco Hydraulic Brake Actuator-DM72VR
- Shop: Easy Grease Trailer Hub and Drum Assembly for 3.5K Axles - 10" - 5 on 4-1/2 - Pre-Greased
- Shop: Demco Channel Tongue Trailer Coupler - eZ-Latch - Zinc - 2" Ball - Bolt On - 7,000 lbs
- Q&A: How Far Apart Are The Holes On The Demco Coupler DM15945 And What Size Bolts To Use
- Shop: etrailer Electric Trailer Brakes - 10" - Left/Right Hand Assemblies - 3,500 lbs
- Shop: etrailer Electric Trailer Brakes - Self-Adjusting - 10" - Left/Right Hand Assemblies - 3.5K
- Q&A: Adding Electric Brakes To ShoreLandr Boat Trailer
- Shop: Trailer Wiring
- Q&A: Bolt Pattern for Demco Hydraulic Brake Actuator DM72VR
- Q&A: Converting Trailer from Surge Brakes to Electric Brakes
- Q&A: How to Determine Correct Electric Trailer Brake Size
- Q&A: Picking Out Trailer Brake Assemblies that Have Bolt Pattern 2-7/8 inch by 2-7/8 inch
- Shop: Electric Trailer Brake Assembly - Self-Adjusting - 10" - Right Hand - 3,500 lbs
- Shop: Electric Trailer Brake Assembly - Self-Adjusting - 10" - Left Hand - 3,500 lbs
- Shop: 18-Gauge 2-Wire Bonded Wire - 40'
- Search Results: trailer hitch
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer tires and wheels
- Shop: Suspension Enhancement
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Video: Measuring To Choose The Right Trailer Axle
- Article: How to Measure for Trailer Hitch Drop
- Shop: Brake Controller


Scott F.
6/25/2026
The bolt pattern is the same. I have done several of these going both directions, from the hydraulic and to the non-hydraulic, and the hole pattern was the same.