Voltage Regulator Rectifier for V-Twin Engines CH640 CH680 CH730 CV750 | 20-30 Amp

GOOFIT Industrial Series – Heavy-Duty 20-30A Engine Voltage Regulator

Keep your equipment running at full power. The GOOFIT 25-403-39-S Voltage Regulator Rectifier is a high-performance replacement engineered for commercial-grade single-cylinder and V-Twin OHV engines. Whether you are operating a zero-turn mower, a standby generator, or heavy-duty agricultural machinery, a stable charging system is vital. This regulator is designed to maintain a consistent 14.5V (±0.5V) output, ensuring your battery stays charged and your electronic ignition systems remain protected from surges.

Constructed from high-quality metal and rubber, this unit is built for superior wear and corrosion resistance. It is specifically designed to handle the high heat and vibration common in air-cooled industrial engines, providing a significantly longer service life than standard aftermarket parts.

Comprehensive Compatibility

This versatile regulator is a direct replacement for a massive range of engines and OEM part numbers:

• OEM Part Numbers: 25-403-08-S, 25-403-20-S, 25-403-21-S, 25-403-29-S, 25-403-32-S, 25-403-39-S.
• V-Twin OHV Engines: CH18–CH26, CH620–CH752, CH940–CH1000, CV640–CV750.
• Single-Cylinder OHV Engines: CH11, CH13, CH14, CH15.
• Electronic Fuel Injection (EFI) Models: ECH630–ECH980, ECV650–ECV980, PCH and PCV series.

Key Technical Specifications:

• Output Rating: 20–30 Amps.
• Regulated Voltage: 14.5V ± 0.5V.
• Mounting Hole Spacing: 68mm (2.67").
• Material: Heavy-duty corrosion-resistant metal housing with sealed rubber insulation.

Why Choose the GOOFIT Industrial Regulator?

• Heavy-Duty Amperage Handling: Rated for 20–30 Amps, this unit is built to manage the high electrical loads of commercial equipment, including electric PTO clutches and high-intensity work lights.
• Precision Voltage Regulation: Maintains a tight 14.5V threshold, preventing battery "boiling" (overcharging) and ensuring that EFI computers and sensors receive the steady power they require for optimal fuel mapping.
• Commercial-Grade Durability: The specialized metal-and-rubber construction is designed to thrive in harsh, dusty, and high-vibration environments, typical of landscaping and construction sites.
• Drop-In Replacement: With standard 68mm mounting holes and factory-spec terminals, this unit offers a fast and easy installation to minimize your equipment's downtime.