Replacement for Atwood Surge Brake Actuator
Question:
Atwood MPD 85778 - what replacement hitch should I purchase to replace the above hitch. Thank you
asked by: Pam Y
Expert Reply:
The Atwood MPD 85778 is not actually a model number for their actuator, it is a literature number - basically a manual number so I wouldn't be able to tell you what a direct replacement would be.
You will need to match your actuator to either drum or disc brakes, the weight capacity, coupler size and what size tongue it bolts onto.
For example, if you had disc brakes, a 3" wide channel tongue, needed a 7,000 lb capacity and had either a 1-7/8", 2" or 50-mm hitch ball a great option would be the Dexter # 099-175-20.
Meanwhile, if you had drum brakes, needed something with a heftier 12,500 lb capacity and had a 2-5/16" ball you would want the Titan # T2477600.
If you get back to me with what type of brakes you have, capacity you need, hitch ball size, where you are mounting it and if you need an electric lockout I'll be happy to get back to you. I have also added a link to our selection of actuators for you to take a look at.

Products Referenced in This Question
Dexter DX7.5 Drop-N-Go Brake Actuator - Disc Brakes - 2" Ball - Zinc Plated - 7,500 lbs
- Brake Actuator
- Surge Brake Actuator
- Straight Tongue Coupler
- Bolt-On
- 7500 lbs GTW
- 2 Inch Ball Coupler
- Disc Brakes
- Electric Lockout
- Dexter
more information >
Dexter Zinc-Plated Brake Actuator - Drum - 2-5/16" Ball - Bolt On - 12,500 lbs
- Brake Actuator
- Surge Brake Actuator
- Straight Tongue Coupler
- Bolt-On
- 12500 lbs GTW
- 2-5/16 Inch Ball Coupler
- Drum Brakes
- No Lockout
- Dexter
more information >
Product Page this Question was Asked From
Dexter Brake Actuator with Manual Lockout - Bolt On - Drum - 2" Ball - 7,500 lbs
- Brake Actuator
- Surge Brake Actuator
- Straight Tongue Coupler
- Bolt-On
- 7500 lbs GTW
- 2 Inch Ball Coupler
- Drum Brakes
- Manual Lockout
- Dexter
more information >
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