Description
Marathon Exciter Stator 789485-0A | Genuine OEM | In stock
The Marathon Exciter Stator 789485-0A is a brand-new, genuine OEM replacement component manufactured by Marathon Electric for brushless synchronous generator systems. This exciter stator is a key part of the generator’s excitation circuit, providing the stationary magnetic field necessary for dependable voltage build-up and precise regulation during operation.
Supplied new and unused, this original Marathon Electric exciter stator is produced to strict factory tolerances for electrical consistency, insulation strength, and mechanical accuracy. Choosing a genuine OEM exciter stator helps protect against unstable voltage output, excitation loss, overheating, and premature alternator damage that can occur with aftermarket or rewound alternatives.
This part is commonly used on Marathon MagnaPLUS generators with 360 frame sizes. If you are uncertain about compatibility with your specific generator model or serial number, please contact us before ordering—our technical team is available to verify correct fitment.
📦 In stock and ready to ship from Joval Industrial.
Key Features & Benefits
- Brand new, original Marathon Electric OEM component
- Designed for brushless generator excitation systems
- Factory-wound stator for reliable voltage build-up
- Supports proper excitation and AVR performance
- Suitable for industrial, standby, and prime power applications
- Manufactured to Marathon Electric electrical and insulation standards
General Facts About Exciter Stators
- The exciter stator functions as the stationary magnetic field in brushless alternators
- It energizes the exciter rotor, which is rectified to supply DC current to the main rotor
- Residual magnetism enables initial voltage generation without external flashing
- A failing exciter stator may cause low output, unstable voltage, or complete loss of power
- Maintaining correct resistance and insulation values ensures long-term reliability
Common Applications
- Marathon Electric MagnaPLUS generators
- 360 frame size generator ends
- Industrial, standby, and prime power generator systems
⚠️ Important Note: This exciter stator is commonly used on Marathon MagnaPLUS 360 frames, but generator configurations can vary. Always confirm compatibility using your generator model and serial number or contact Joval Industrial before ordering.
Frequently Asked Questions (FAQ)
Is this a genuine Marathon Electric part?
Yes. The 789485-0A is a brand-new, original OEM Marathon Electric exciter stator—not aftermarket or refurbished.
Is this item in stock?
Yes. This exciter stator is in stock and ready for immediate shipment.
What happens if an exciter stator fails?
Symptoms can include unstable voltage, low generator output, excitation faults, or no output at all. Replacing the stator with the correct OEM part restores proper performance.
Is this compatible with all Marathon generators?
No. This part is commonly used on MagnaPLUS 360 frame units, but compatibility depends on the exact model and serial number.
Can I install this myself?
Installation should be completed by qualified generator service technicians following Marathon Electric service and safety procedures.
Why Buy from Joval Industrial?
Joval Industrial focuses on supplying genuine OEM generator components backed by knowledgeable support. We assist customers in confirming proper fitment before shipment and provide dependable, in-stock solutions for critical power equipment.
📞 Need help confirming fitment?
Call us at 1-877-335-6825 or contact our team before ordering.
CORRESPONDING, ASSOCIATED & OBSOLETE PART NUMBERS
- 789485-0A
- JV84-0A
