Generac OEM Automatic Voltage Regulator (AVR) — Part Number 0H2579B Brand: Generac | Condition: New Old Stock (NOS)
You are purchasing a genuine Generac OEM Automatic Voltage Regulator (AVR), part number 0H2579B. This is an authentic factory original part — never installed, never used. The AVR is the critical electronic component that maintains stable, consistent output voltage from your portable generator's Vision alternator — regardless of load fluctuations. A failed AVR can cause voltage surges, under-voltage, erratic power output, or complete loss of electrical output, potentially damaging connected equipment.
Condition Details: This is a New Old Stock (NOS) part. The AVR itself is in new, uninstalled condition. As is common with NOS inventory, the original packaging may show signs of age, including shelf wear, dust, or minor cosmetic blemishes on the bag or box. The part is new and fully functional.
Compatible Models / Applications:
Generac Vision Series Portable Generators rated 5.5–7.5kW
Compatible Generators: GP5500, GP6500, GP6500E, GP7500E, XG6500, XP6500E
Compatible Honeywell Models: 6037, 6039
Honeywell generator models: 5940-0 (GP6500), 5941-0 (GP6500E), 5943-0 (GP7500E)
Also compatible with Generac-branded generators marketed under: Guardian, Honeywell, Siemens, Carrier, Watchdog, Centurion, and Bryant
Fits 105+ total Generac generator models — verify your generator model number before ordering
Part Number / Supersede Information:
Primary OEM Part Number: 0H2579B
This part number may have been superseded or cross-referenced by an updated Generac part number. We recommend verifying any current supersede numbers through your local Generac dealer or the official Generac parts catalog prior to ordering.
Why Choose OEM Parts? OEM parts are engineered and manufactured to exact factory tolerances, ensuring a precise fit, reliable performance, and long service life. Unlike aftermarket alternatives, OEM parts are designed specifically for your generator — no modifications, no guesswork.
Returns: We proudly offer hassle-free returns. If you are not completely satisfied with your purchase for any reason, simply open a return request through eBay within 30 days of purchase and we will take care of you promptly.
Thank you for choosing QBS Parts Inc! We truly appreciate your business. If you have any issues whatsoever with your order, please give us the opportunity to resolve it before leaving feedback — we are committed to making every transaction a great experience.
Please verify fitment using your generator's model and serial number before purchasing. Feel free to message us with any questions — we're here to help!
