What is Mounting Hole Spacing of Demco DA75 Trailer Brake Actuator for Drum Brakes # DM33CV
Updated 06/30/2026 | Published 06/26/2026
Question:
What is the bolt pattern and spacing? The description says 2 holes 1/2 diameter and 3 inches apart but the image shows 4 holes maybe 3 inch horizontally and 2.5 inch vertically.
asked by: Matt
Expert Reply:
Hey Matt, thanks for bringing this to our attention. Yes the mounting hole dimensions of the Demco DA75 Trailer Brake Actuator for Drum Brakes # DM33CV that you referenced are separated by 3 inches horizontally and 2.5 inches vertically. Do you have a 4 bolt mounting pattern on your trailer's tongue? Most of the time people have to drill new holes when swapping actuators.
Product Page this Question was Asked From
Demco DA75 Trailer Brake Actuator for Disc Brakes - Zinc Plated - 2" Ball - 7,500 lbs
- Brake Actuator
- Surge Brake Actuator
- Boat Trailer
- Travel Trailer
- Utility Trailer
- Bolt-On
- 7500 lbs GTW
- 2 Inch Ball Coupler
- 3 Inch Channel Tongue
- Disc Brakes
- Electric Lockout
- Demco
more information >
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