Features Mainly Function:This is a engine voltage regulator, AVR, rectifier.Assembled with smart chip, features Over-current /Over-load /Low-load /Short-circuit /Over-heat intelligent protection High Conversion Efficiency: Uses synchronous rectification technology, has high conversion efficiency and stable performance; The input should be at least 3V higher than output. This voltage regulator is typically mounted on the engine and used to charge the battery Easy to install ; This regulator has 2 plugs with a total of 3 wires, small volume, easy to install and convenient to use you can confirm that the power of your engine before If your generator has no output and/or your battery isn't charging, this is the part that most likely needs replaced,but please make sure that your generator has these same connections Descriptions: This is a engine voltage regulator, AVR, rectifier,has 2 plugs with a total of 3 wires,is typically mounted on the engine and used to charge the battery.  And suitable for KDE3500 5000 6500 6700. Specifications: Model: 178/186  KDE3500 5000 6500 6700 Applicable area: agriculture Accessories type: engine accessories Material: aluminum Color: as the picture Voltage: DC12V Size:as the picture Weight:198g Package Included: 1 x Voltage Regulator Special Note: Our 12V voltage regulator has 3 wires: 2 blue or green wires for AC voltage input from generator and one red wire for DC voltage output to 12V DC battery. Embedded electrical circuit is internally grounded to the case of part itself as the fourth grounding wire. It is equivalent to a 4-wire 12V voltage regulator. Please note that the color of wire will be sent randomly, and make sure you will not mind before ordering.  Package List