Diodes B-525570-2 & B-525571-2 – Rectifier Diodes for Marathon MagnaMAX Generators

The B-525570-2 (Forward Diode) and B-525571-2 (Reverse Diode) are high-performance rectifier diodes designed for Marathon MagnaMAX series generator alternators. These diodes are essential components in the rotating rectifier assembly, ensuring stable DC excitation for the rotor and reliable generator voltage output.

Key Features

• B-525570-2 – Forward polarity rectifier diode

• B-525571-2 – Reverse polarity rectifier diode

• Designed for Marathon 430, 570, and 740 series alternators

• High-voltage, high-current rating for heavy-duty generator use

• OEM-grade components for long-lasting reliability

• Excellent thermal performance and fast switching characteristics

• Suitable for industrial, commercial, and continuous-duty generator applications