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Class A motorhome RV MCD Innovations windshield power shade motor 12V / 12 volt. MCD part number 50.338 / 50 338 / 50:338. This is the Black Pearl Edition 36RPM Dual Range Switch Controlled, 3 Wire 11 1/8 inches long. Newmar part number 019115.
This is the updated replacement version for 50.337 / 50 337 / 50:337 / MCD.SC.28-12V.1 (color red).
This shade motor is used on Newmar Class A motorhomes, as well as many other manufacturers and models of Class A motorhomes.
Yellow wire: used for the ignition circuit for a windshield shade.
Red and black wire: used for power and ground from rocker switch.
Green wire: sets the limits of the shade by depressing the red button in the bulb at the end of the wire.