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Marathon MagnaMax Reverse-Polarity Rectifier Diode B-525571-1 — product image 1 | Northline Parts

Marathon MagnaMax Reverse-Polarity Rectifier Diode B-525571-1

SKU: NLT2T01225
$112.89 In Stock
$112.89
Sale price  $112.89 Regular price 
Ships for free in 2–4 business days.
Replace a failed reverse-polarity diode in a matching Marathon MagnaMax generator rotating rectifier assembly with reference B-525571-1.
Estimated delivery between
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Compatible Models

We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.

Compatible equipment / model
Compatible Equipment / Model
Marathon MagnaMax generators 430, 570, 740 series where B-525571-1 is specified

Product Overview

The diode provides one-way current flow in the generator excitation system. A shorted or open diode can prevent normal voltage buildup or damage related components.

Use suitable electrical tests to isolate the rectifier fault; generator servicing involves hazardous voltages.

Key Features & Performance

  • Part: Marathon MagnaMax Reverse-Polarity Rectifier Diode B-525571-1
  • Primary application: Marathon MagnaMax generators 430, 570, 740 series where B-525571-1 is specified
  • Reference: B-525571-1

OE / Reference Numbers

  • B-525571-1

Fitment & Compatibility Notes

Match diode polarity, thread, stud layout, current rating and generator exciter specification.

Frequently Asked Questions

Is this a genuine OEM part? This listing is for a replacement part unless specifically identified as genuine OEM. OE numbers are provided for identification.

How do I confirm fitment? Match diode polarity, thread, stud layout, current rating and generator exciter specification.

Part Summary

keywords: Marathon MagnaMax Reverse-Polarity Rectifier Diode B-525571-1, B-525571-1, Marathon MagnaMax generators 430, 570, 740 series where B-525571-1 is specified

Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.

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