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For Kohler Voltage Regulator 41 403 09 Voltage Regulator Rectifier for Kohler 8-25 HP Engine 41 403 10-S 41 403 09-S 25 403 03-S
Sturdy construction: This voltage regulator rectifier for kohler 8-25 hp engine is made from quality materials to ensure reliable performance
OEM quality & Well made: The 41 403 10-S 41 403 09-S 25 403 03-S Kohler regulator rectifier is in charge of not only regulating the voltage produced by the alternator or stator, but it also rectifies the voltage by converting the AC power to the appropriate amount of DC power.
Fitment: Fits many John Deere & Kohler 8-25 HP Engines with 15 Amp Alternators, Replaces early style box regulators. Has 3 terminals AC, B+, AC in a row
41 403 09 kohler voltage regulator rectifier
Kohler 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; John Deere Part #s: AM34738, AM106357, & AM102596
Why do you need voltage regulator for Kohler battery?
This is a modal window. The voltage regulator ensures the consistency that is required to keep everything running smoothly. Excessive voltage can cause damage to the battery, wiring system and other electrical accessories. The rectifier regulator can controls the voltage capacity that goes to the battery.
How to Test a Voltage Regulator on a Kohler Engine
Step 1
Place the device containing the Kohler engine on a hard, flat surface and remove the key from the ignition.
Step 2
Inspect the battery. Make sure the positive and negative cables are tight and inspect the battery case and terminals for cracks. Open the electrolyte cells by prying off the top cap with the flathead screwdriver. Check electrolyte levels and add soft, clean water if needed.
Step 3
Place a small load on the battery by turning the key to the ON position for 15 seconds. Turn the voltmeter on and turn the dial to 20 ohms. Place the black lead from the voltmeter on the negative battery post and the red lead on the positive post. The voltage should read 12 volts without the engine running. If lower than 12 volts, the battery is bad.
Step 4
Start the engine and advance the throttle to the FAST position with the voltmeter still connected to the battery. The voltmeter should read a minimum of 13 volts; if it still reads 12 volts, the voltage regulator is bad.
The Race Car Kid
Reviewed in the United States on July 3, 2024
Worked out of the box no modifications necessary
neal8530
Reviewed in the United States on September 21, 2022
This voltage regulator worked less than 30 days. So much for the 20 year warranty. Can't get any help with it at all.
Customer
Reviewed in the United States on August 8, 2022
Doesn’t work straight from the box. Garbage
RT
Reviewed in the United States on June 7, 2022
It works on a 1865 cub Cub cadet, appears to be a little weak, but ok
Greg
Reviewed in the United States on December 23, 2022
My battery stopped charging on my Gravely 260Z. I purchased this and installed, works great now. Charging system is now functioning as designed.
Dakotanator
Reviewed in the United States on January 22, 2022
Perfect replacement for OEM, and inexpensive.
Joseph w talasco
Reviewed in the United States on January 19, 2022
Works good on 12 hp
LaVeta Pfaff
Reviewed in the United States on November 4, 2021
Like and I used it on my garden tractor. And so far it's doing great. I also use the tractor for removing snow and much more.
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