Cole Hersee 24213 12V 200A Continuous Solenoid

Perfect match and works well.

This is the go-to replacement boost solenoid for many motorhomes.

Replaced the stock solenoid that failed in a Travato 59k. No problems.

This solenoid replaced the battery disconnect solenoid in our motorhome. The original solenoid only had three lugs and this one had four. Adding a ground wire to the 4th lug provided the necessary ground connection. Installation was simple and the solenoid has been working perfectly. The OEM solenoid was only rated at 85 amps for continuous duty and this one is 200 amps continuous, which was the main reason I selected it.

Used this replacement in my RV as it is reported to be superior in quality and longevity than the factory installed original. This item comes with no directions, and there are no + or - markings on the unit itself. Could be improved with some simple instructions.

This is a genuine Cole Hersee relay. It's a good value for a 200-rated relay from a name brand vendor. I'm using it to isolate two batteries in my 07 Tacoma (originally wth a 130 amp alternator; now with a 200-amp). I do wish the studs were a little longer. I replaced the nut and split washer with a serrated flanged nut to fit two battery lugs. But I needed room for one more lug and had to install a junction block. I strongly suspect other relays have same length studs, so I'm not really faulting the design. Will be upgrading to a 200 amp alternator soon; then, I'll really see how the relay holds up. 4/6/17 update: Installed the 200-amp alternator about a month ago. Relay is doing it's job as expected. Will bump up to 5 stars if relay gives me another year of worry-free service. 3/28/19 update: solenoid continues to function as expected. My daughter gave it a challenge. She left my 400 watt inverter on and left the solenoid on (I’m using a manual switch). That killed both batteries, but the solenoid points held up and the solenoid lives on. Raising rating to five stars.

Bought three and only two were good. The bad one was glitchy for about two years, then would only operate if posts were jumped. These are far too expensive to gamble with such odds. One has rarely been used in the past year and I am now leery of how long it might last once put back to work. All were well within specifications of the advertised workload, mostly activating low draw LED lights. Worst part is that I have not received a reply from the manufacturer. Hard to consider supporting this brand again given their quality issues and total lack of communication. I bought a different solenoid here on Amazon for less than $17 and for the days it has been in service, it has performed just as well as one of these when they work.

The description says it comes with nuts and lock washers, ours arrived without them.