Features: 1. Applicable Models: Engine rectifier regulator is fit for 8 to 25 HP engines with 15 Amp alternators. Please confirm whether your model is applicable before buying. 2. OE Number: The part numbers of reference are 4140309, 2575503S, 4140305, 25 403 03, 25 403 03S, 25 755 03, 25 755 03S, 41 403 01, 41 403 03, 41 403 04, 41 403 03S, 41 403 05, 41 403 06, 41 403 06S, 41 403 08, 41 403 08S, 41 403 09, 41 403 09S, 41 403 10, 41 403 10S. 3. Protection Function: The rectifier has a battery charging protection function. When the battery power is 100 percent, the rectifier stops charging the battery to prevent overcharging. 4. Durable Construction: Engine voltage regulator rectifier is made of premium material, providing high hardness, excellent heat dissipation, sturdy and durable performance, and a long service life. 5. Ideal Replacement: Complies with OEM specifications to ensure shape and function match the original unit, providing a perfect replacement without requiring additional modifications. Specification: Item Type: Voltage Regulator Rectifier Material: ABS + metal OE Number: 4140309, 2575503S, 4140305, 25 403 03, 25 403 03S, 25 755 03, 25 755 03S, 41 403 01, 41 403 03, 41 403 04, 41 403 03S, 41 403 05, 41 403 06, 41 403 06S, 41 403 08, 41 403 08S, 41 403 09, 41 403 09S, 41 403 10, 41 403 10S Fitment: For 8-25 HP engines with 15 Amp alternators Note: Please double check the part number of your item; matching information is for reference only.