Generator Capacitor 40uf +/5%+/5% CBB61 CBB60 Half Moon

Generator Capacitor 45uf +/-5% CBB61 CBB60 Half Moon

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High specification Capacitor.

Generator Guru says: 

It is common for the capacitor on a generator to test as working correctly, but then fail when the higher voltages are applied to it by the alternator. It is advisable to always change your Generator Capacitor if the voltage changes (and the engine is normal speed.) This causes 99% of the problems with the electricity output on brushless generators and can damage your alternator if it completely fails, sending a high voltage through the alternator. This could burn out the windings and result in a very expensive replacement being required.

The Capacitor is essential to your Generator producing electricity. It is required to excite the Alternator windings and reduce voltage surges. Capacitors should last the lifetime of the generator, but can burn out or be damaged if any of the following occur: 

  • Generator user has tried to draw more power than the Generator can produce.
  • A surge has happened on equipment and the capacitor has blown to protect the Alternator.
  • The Capacitor is made of Paper cells and has degraded. (Usually found on Chinese built generators.)

See our video below on testing procedure.

 *Compatible Part


3 Reviews

  • 5

    Posted by Unknown on 27th Sep 2018

    Works very well and fast delivery to that part.

  • 5
    Excellent service!

    Posted by Mike Robert on 11th Jan 2018

    I needed info on a Chinese diesel generator that was brought to me for repair. Another shop had replaced the excitation cap but obviously and incorrectly guessed at the value. I left a message for one of the engineers at Gen Guru, received a rapid response and ordered the recommended cap. Machine now operates as designed, happy customer. Alsop very impressed they have a reliable method to ship items.

  • 5

    Posted by slthomp5657 on 16th Sep 2017

    Worked great even though my older generator wasn't listed on the site I was able to get enough information and make a good guess.
    I had to modify my plug to make it work but it was simple and only two wires to mess with. I probably could have found the exact part if I could have got the numbers off of my old one but it was to badly melted to read any.
    Hopefully I don't have to fix anything else soon but if I do I know were to look thanks.