I ordered a new one from Newell about a week ago for a cost of right at $50 not including tax and shipping. My leak is slow enough I decided to not change it while on my 3 month trip, but wait until I am back home. I was not successful when I plugged the exhaut port as that caused the differential to lock. I think in your situation I would have the valve sent to a campground on the trip and do the change as soon as possible to reduce excessive cycling on the auxiliary pump. R
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