Just keep this in mind. If you change out the regulator you will have air in the lines and the following things to deal with.
The refig, heater, and some pilot hot water heater that have very small holes and thus will not purge off the air in one ignite cycle. You may have to crack the connection just before the gas valve on these till you smell gas to purge the air.
WBCCI 12156 AIR 3144 WACHUNG TAC NJ6
2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles