Description
Marathon Exciter Stator B-400N-300AG | Genuine OEM | In stock
The Marathon Exciter Stator B-400N-300AG is a new, genuine OEM excitation component produced by Marathon Electric for use in brushless generator systems. This exciter stator establishes the stationary magnetic field required for proper voltage build-up, allowing the generator to maintain stable and regulated output as electrical load conditions change.
Manufactured new and unused, this original OEM exciter stator is built to factory-defined electrical and insulation standards to support long-term reliability. Installing a genuine Marathon exciter stator helps maintain excitation integrity, supports consistent AVR response, and reduces the likelihood of voltage drop or excitation-related faults.
This exciter stator is commonly used on Marathon MagnaMax generators with 570 frame sizes. If you are uncertain whether B-400N-300AG matches your specific generator model or serial number, please contact us before ordering so our team can assist with compatibility confirmation.
š¦ In stock and ready to ship from Joval Industrial.
Key Features & Benefits
- Brand new, original OEM Marathon Electric exciter stator
- Designed for brushless generator excitation circuits
- Balanced winding design for dependable voltage build-up
- Helps maintain proper excitation and regulator operation
- Suitable for industrial, standby, and prime power use
- Manufactured to Marathon Electric OEM electrical specifications
General Facts About Exciter Stators
- Exciter stators provide the stationary magnetic field in brushless alternatorsThe exciter rotor converts this field into DC power for the main rotor
- Residual magnetism allows voltage build-up during startup
- Deterioration can lead to low voltage, instability, or total excitation loss
- Correct resistance and insulation values are critical for system longevity
Common Applications
- Marathon MagnaMax generator ends
- 570 frame size alternators
- Standby and prime power systems
ā ļø Important Note: Generator configurations vary by model and serial number. Always verify compatibility before ordering or contact Joval Industrial for assistance.
Frequently Asked Questions (FAQ)
Is this an OEM Marathon Electric exciter stator?
Yes. B-400N-300AG is a brand-new, original OEM Marathon Electric component.
Is this exciter stator currently in stock?
Yes. This item is in stock and available for immediate shipment.
What issues can occur if the exciter stator fails?
A failed exciter stator may cause low or unstable voltage, excitation loss, or no generator output.
Is this part compatible with all MagnaMax generators?
No. Compatibility depends on the exact generator configuration and frame size. Contact us to confirm fitment.
Who should handle installation?
Installation should be performed by qualified generator service technicians.
Why Buy from Joval Industrial?
Joval Industrial supplies genuine OEM generator parts backed by knowledgeable technical support. We help customers avoid incorrect purchases by confirming fitment before shipment and providing reliable, in-stock solutions.
š Need help confirming fitment?
Call us at 1-877-335-6825 or contact our team before ordering.
CORRESPONDING, ASSOCIATED & OBSOLETEĀ PART NUMBERS
- B-400N-300AG
- B400N-300AG
- 400N-300AG
- JV300AG
