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Description
Kohler 25 403 38-S Voltage Regulator/Rectifier | Genuine OEM 15 Amp Charging System Regulator
The Kohler 25 403 38-S Voltage Regulator/Rectifier is a genuine OEM replacement charging system component designed for compatible Kohler 4-cycle gasoline engines. Engineered to Kohler's exact factory specifications, this 15-amp regulator/rectifier converts AC current generated by the stator into stable DC power while regulating output voltage to ensure reliable battery charging and consistent electrical system performance.
Constructed with heavy-duty electronic components and a durable heat-dissipating aluminum housing, the Kohler 25 403 38-S REGULATOR/RECTIFIER is built to withstand vibration, engine heat, moisture, and demanding commercial and residential operating conditions. Replacing a faulty regulator/rectifier helps restore proper battery charging, prevents voltage fluctuations, and ensures dependable operation of your mower's electrical components.
Product Features
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Brand: Kohler
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Part Number: 25 403 38-S
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Product Type: Voltage Regulator / Rectifier
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Genuine Kohler OEM replacement part
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15-Amp charging system output
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Converts AC power to regulated DC voltage
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Maintains proper battery charging
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Heavy-duty aluminum heat sink for efficient cooling
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Precision-engineered for an exact OEM fit
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Manufactured to Kohler factory specifications
Ideal Applications
The Kohler 25 403 38-S Voltage Regulator/Rectifier is ideal for:
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Kohler 4-cycle gasoline engines
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Zero-turn mowers
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Riding lawn mowers
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Lawn tractors
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Commercial landscaping equipment
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Utility equipment
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Generators
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Outdoor power equipment
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Charging system repairs and electrical maintenance
Benefits
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Restores proper battery charging performance
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Prevents overcharging and voltage fluctuations
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Ensures reliable operation of electrical components
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Genuine OEM quality provides an exact fit and dependable performance
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Durable construction withstands heat, vibration, and harsh environments
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Helps extend battery and charging system life
Specifications
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Brand: Kohler
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Part Number: 25 403 38-S
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Product Type: Voltage Regulator / Rectifier
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OEM: Genuine Kohler Part
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Charging Capacity: 15 Amp
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Housing Material: Cast aluminum heat sink
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Function: Converts and regulates charging system voltage
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Application: Kohler engine electrical charging system
Compatible Equipment
The Kohler 25 403 38-S Voltage Regulator/Rectifier fits select Kohler Command, Command PRO, Confidant, Courage, and other compatible gasoline engines equipped with a 15-amp charging system, commonly found on zero-turn mowers, riding lawn mowers, lawn tractors, generators, and other outdoor power equipment.
Always verify your engine model, charging system configuration, and OEM part number before ordering to ensure proper fit.
Why Buy from Barry's Power Equipment?
Barry's Power Equipment is your trusted source for genuine OEM outdoor power equipment parts and electrical system components.
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Genuine OEM Kohler Parts
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Fast Shipping Throughout the USA
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Competitive Pricing
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Expert Customer Support
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Trusted by Homeowners and Professional Landscapers
Keep your equipment's electrical system operating at peak performance with the Kohler 25 403 38-S Voltage Regulator/Rectifier. Designed for an exact OEM fit, reliable battery charging, and long-lasting durability, this genuine Kohler replacement helps ensure dependable starting and consistent electrical performance.




