South Florida - Class A Maintenance shop advice.

There are Cat facilities in many locations, but unfortunately, Cat distanced itself from their aborted attempt to supply engines to the RV community shortly after they abandoned the RV business due to pollution issues. You may get lucky and find a Cat facility that will work on yours, but beware of the charges.

Tell us more about your RV. What manufacturer? What chassis? It may be better to go to a facility that services your chassis. Examples would be Freightliner and Spartan.