Replacement Actuator Recommendation for Atwood 85778

Question:

What do I hook the electrical wires up to for backing up? I'm not familiar with this setup. I think I need five prong or add another connector for backup. Is that correct?

asked by: Ralph M

Expert Reply:

The best replacement option we offer for an Atwood Surge Brake Actuator 85778 is the Demco Hydraulic Brake Actuator part # DM62VR. It has the same ball size, offers a bolt-on install, and has a greater capacity. The only functional difference is it has an electric lockout as opposed to a manual one which aren't really used anymore.

expert reply by: Jameson C

Ralph M.

2/28/2022

What do I hook the electrical wires up to for backing up? I'm not familiar with this setup. I think I need five prong or add another connector for backup. Is that correct?

Jameson C.

2/28/2022

You are correct you will need to have a 5-way for the reverse lock out solenoid. On the vehicle side what you'd need is the part # C57187 which plugs into the vehicle 4-way and then gives you a circuit you would run to your vehicle reverse light circuit. Then for the trailer side I would recommend the part # HM47913 which has a circuit tester in each of the pins of it.