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Kohler 25 403 39-S Voltage Regulator Rectifier 25-403-32-S
Fits: Carbureted or EFI Aegis LH 640, 685, 690, 775 and select Command EFI engines
Replaces Part Number:
- 25 403 08-S
- 25 403 20-S
- 25 403 21-S
- 25 403 29-S
- 25 403 32-S
- 25 403 39-S
Instruction: 20-30 AMP 12 Volt
Package Includes:
- 1 x Voltage Regulator
- 1 x Cable
- 1 x Screw
- 1 x Gasket
Brand new and High quality replacement.
michael warne
June 23, 2025
Worked like a charm.
Victoplatupus
May 5, 2025
Matches oem regulator, super simple fix and for a fraction of the oem price. Fits as it should and well made.
Paul Snell
April 28, 2025
My original Regulator was not putting out any DC voltage. Installed this one and is working like it should. Very easy to replace.
Mrs Mc
March 20, 2025
We got this Rectifier Regulator to replace the one on our UTV and it got the Job Done.
The Parkers
January 16, 2025
Replaced my 12 year old rectifier, handles the lights, 12v accessories perfectly. Battery stays perfectly charged. Puts out 14.64 volts while charging.4 months later Update: it has failed now, I’ve put 12.3 hours on the mower since I installed it, it’s putting out 15-17vdc sporadically. Replaced with one from the dealer, it is working again. But at 13.98vdc steadily.
Caroline
December 30, 2024
This product, I put it in and tried so many times,but it just won't work. It's a total waste of half my day. I wouldn't recommend it at all.
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