Champion CSA40025 AVR Voltage Regulator



This is a Champion CSA40025 AVR Voltage Regulator

This is a generator voltage regulator. This part is a universal type part that is used in brush type generator heads. This voltage regulator has a 4 blade plug and 2 single wires. If your generator isn’t producing power the most common issue is the voltage regulator. You can test your regulator with an electrical tester. If you do not have a tester you can physically look for cracks or busted components.

Your voltage regulator can be seen in the end of the generator head. Though at times it can be mounted external to the generator head. To replace the voltage regulator locate the old one and replace it with the new one. The 4 blade plug and 2 single wires are the only connections. The 2 single wires attach to the carbon brush. The positive wire is labeled on the voltage regulator.

Your voltage regulator may need to be adjusted after installation. Often no adjustment is needed. If you don’t have the correct power output use the adjustment screw on the back of the regulator to turn the voltage up or down.


Rating: 1kw to 4kw
Shape: Square / Rectangular
Electric Connection: 6 Wire (4 Blade Quick Connect & 2 Single Wires)
Bolt Connection: 2 Bolt – 3-7/8″ Center to Center
Capacitor Rating: 250v | 220uF
Size: Length – 4-1/4″ | Height – 1-5/8″ | Thick: 7/8″ (Case Only)
Adjustable: Yes

This item will ship for FREE from our US warehouse. Your order will ship next business day with tracking uploaded to PayPal. Your package will ship with USPS with a delivery time of 3 to 5 days from cleared payment!

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All parts are universal parts. Any part we sell is not intended to be represented as an OEM part. All brands and models listed are done so to direct customers to direct replacement parts. The brand and models listed include but are not limited to generators or any other small engine powered equipment. Generator Parts World will offer a 90 replacement warranty of any part purchased from us under our 90 day replacement policy