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Voltage Regulator mower Rectifier for Kohler 8-25 HP Engines with 15 Amp Rectifier Regulator for Kohler 25 403 03-S 41 403 10-S 41 403 09-S

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$14.39

$ 6 .99 $6.99

In Stock
  • Fits many 8-25 HP Engines with 15 Amp Alternators,different Magnum and Command Series
  • If your lawnmower doesn't charge, try replacing the regulated rectifiers, as they often break out. [Voltage regulator failure can also cause multiple fuses to blow] If it can't be repaired, there may be a problem with the stators and they are more difficult to replace.
  • 【Replace】Rectifier perfect replacement fit for cub cadet lawn mowers, Troy bilt pony riding mower, Any Kohler equipped lawn mower engine.
  • 【Replace】Kohler Part Numbers: 25 403 03 / 25 403 03-S / 25 755 03 / 25 755 03-S / 41 403 01 / 41 403 03 / 41 403 04 / 41 403 03-S /41 403 05 / 41 403 06 / 41 403 06-S / 41 403 08 / 41 403 08-S / 41 403 09 / 41 403 09-S / 41 403 10 / 41 403 10-S
  • Replaces early style box regulators. Has 3 terminals in a row. The voltage regulator rectifier has the function of battery charging protection. When the battery power is 100%, the rectifier stops charging the battery to prevent the battery from being overcharged.



Product Description


1
Replaces early style box regulators

  • Material: Aluminum housing and heat dissipation silicone
  • Terminals: AC, B+, AC
  • Output voltage: 14.5V±0.5V
  • Works fit for all Koehler motors

Fits 8-25 HP engines with a 15 amp alternator

Fits many different Magnum and Command Series

The rectifier has the function of battery charging protection. When the battery power is 100%, the rectifier stops charging the battery to prevent the battery from overcharging.

  • Better heat dissipation due to chip upgrading

voltage regulator Replaces Part Number:

Replaces Kohler Part #s: 41 403 10-S 41 403 09-S 25 403 03-S, 4140308-S, 4140309, 21066-7017 4140303, 4140304, 4140303-S, 4140305, 4140306, 4140306-S, 4140308, 4140309-S, 4140310, 4140310-S, 2540303, 2540303-S, 2575503, 2575503-S, 4140301;
Replaces John Deere Part #s: AM34738, AM106357 & AM102596
Replaces It is applicable to many different Magnum and Command series.
Replaces Replaces early style box regulators. Has 3 terminals in a row.

Jonathan De Jager
2025-09-04 14:25:59
Rigged it to a Gator to charge the battery as the factory one went bad and wasn’t about to pay John deer prices, works great to charge the battery and 14.1V
richard kiernan
2025-08-09 18:40:49
worked fine
Lorrie
2025-07-17 09:47:03
We are back up and cutting grass now thank you
JLB
2025-07-15 12:27:16
A craftsman lawn mower.
Bshllym
2025-07-09 11:58:24
Thank you
wayne j
2025-05-11 15:39:29
Easy to install and connect to, up and running in no time
Flea
2025-04-04 12:54:01
Bought this to fix our mower, put it on and the mower was having the same issue even after the part was replaced. Tested the part and it was broken when we bought it. So now having to buy another part when the part we bought should’ve been working properly when it was sold to us.
E.J.S.
2025-01-04 18:41:08
The regulator for my Robyn engine is no longer available. This looked very similar and low price. I gambled and won. Same hole spacing... same connection. Perfect 14.4 v. charge . Very happy with this.
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