Solution For Needing Replacement Solenoid of Roadmaster Battery Disconnect for Towed Vehicle
Updated 06/27/2026 | Published 06/25/2026
Question:
I installed a Roadmaster Battery Disconnect RM-766 on my Colorado truck a couple of years ago. The solenoid seems to be failing…harder to reconnect after disconnecting. Can I purchase just the solenoid?
asked by: Mark B
Expert Reply:
Hey Mark, Roadmaster does not offer us just the solenoid of the Roadmaster Battery Disconnect part # RM-766 so only solution would be to replace the entire kit and just use the solenoid of it. You might still try contacting Roadmaster directly though.
Janet G.
6/26/2026
We used this and it works great. Never had any problems with it.
Henry
6/27/2026
I have no issues over the last one and a half years Etrailer professionally installed the roadmaster Killswitch the roadmaster tow system the Air Force break system and tied everything to my Motor Coach Everything works flawlessly I couldn’t be more satisfied
Product Page this Question was Asked From
Roadmaster Battery Disconnect for Towed Vehicle w/ Flat Tow Brake System - Gas Only
- Accessories and Parts
- Flat Tow Wiring Harness
- Battery Disconnect
- Roadmaster
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Richard
6/26/2026
I would look for a Cole Hersee 200 amp, 600 amp surge, continuous duty, latching solenoid.