Replace Part Number: Voltage regulator replacement for Part 25-403-39-S,25-403-32-S,25-403-05-S,25-403-08-S,25-403-20-S,25-403-21-S,25-403-29-SCompatible with Engine: CH730-0165 CH730-0170 ECH749 ECV740 62570 64569. See product description below for more detailed compatibility models.Compatible with Engine: CH730-0165 CH730-0170 ECH749 ECV740 62570 64569.Fitment for Zero-Turn Mowers model 74255Plug and Play: The voltage regulator is easy to install,no complicated tools are required,you just need to remove the old rectifier and tighten all loose connections. Perfect match with the original voltage regulator,cost-effective. No modification,cutting or drilling is requiredHigh-Quality Aluminum Alloy Material: The regulated rectifier is made of high-quality aluminum alloy material,which has good heat dissipation performance,wear-resistant and rust-proof,strong and durable,ensuring the best durabilityColor: silvermaterial: metalExcellent Performance: The voltage regulator rectifier provides stable voltage,improves ignition efficiency,can rectify and control supply,is stable and reliable,and has high precision. Replacement for engine directly replaces the old or damaged regulator rectifierType: Voltage RegulatorVolt: 12VReplaces Part: 25-403-05-S,25-403-08-S,25-403-20-S,25-403-21-S,25-403-29-SFitment:Replaces 25 403 39-S Part 435-177 STE~435-177Fits for ECH749 and ECV740 ModelsPackage Contents:1 x Voltage Regulator RectifierOnly the above package content,other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.