Marathon MagnaPLUS rectifier assembly part number 778714-0A is a kit installed in the generator exciter rotor. This rectifier is very sensitive as it deals with positive and negative polarities. When a diode is shorted, it is recommended to replace all diodes even if the other diodes tests OK.
3x 730839-01 forward
3x 730839-02 reverse
1x Rectifier plate
- The kit can be used on Marathon Magna plus 260-280 frames (Pending Marathon alternator serial number verification, if in doubt please consult with us before ordering).