Thanks for the reply BuckBarker. But, the wiper received from Newmar doesn't have metal tabs just slots in the rubber. Still might take your advice and give it a yank with the pliers.
I don't believe they are any different than a passenger car. The wiper has metal tabs on the bottom that slide into slots in the door. Grab ahold of the old one with pliers and just pull upward to remove. The new one just slips in.