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Voltage Regulator Rectifier for Kohler & John Deere 4140309 41-403-09
$26.99
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$26.99
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Available to order.
This Voltage Regulator Rectifier is a charging system component compatible with Kohler & John Deere and matches OEM Part# 4140309 and 41-403-09.
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I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Product Overview
This Voltage Regulator Rectifier is an essential electrical component designed to maintain a consistent voltage output for Kohler & John Deere engines. The Voltage Regulator Rectifier effectively converts alternating current from the alternator into direct current to charge the battery and power the vehicle's electrical system. This durable Voltage Regulator Rectifier ensures reliable engine performance and protects sensitive electronic components from power surges.
Key Features & Performance
- Durable aluminum housing provides efficient heat dissipation to prolong component life
- Engineered to match or exceed original equipment standards for reliable charging performance
- Advanced internal circuitry prevents overcharging to maintain battery health
- Direct replacement design ensures a precise fit and straightforward installation process
Fitment & Compatibility
- John Deere engines from 8-25 HP with 15 Amp alternators
- Kohler engines from 8-25 HP with 15 Amp alternators
- Kohler Command models CH20, CH22, CH23, and CH25
Common Uses
- Replacing a faulty or burnt-out charging system regulator on lawn tractors
- Routine maintenance to restore electrical stability to residential and commercial mowers
- Restoring battery charging functionality to John Deere and Kohler-powered equipment
Technical Specifications
- Part Number(s): 4140309, 41-403-09
- Housing Material: Aluminum
- Alternator Rating: 15 Amp
- Engine Compatibility: 8-25 HP
Frequently Asked Questions
Q: What are the signs that my voltage regulator needs to be replaced? A: Common symptoms include a battery that will not stay charged, dimming headlights during operation, or a bulging battery caused by overcharging.
Q: Is this unit a direct plug-and-play replacement for my engine? A: Yes, it is designed to match factory specifications for a seamless connection to your existing wiring harness without modification.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.