Descriptions: _x000D_ 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. _x000D_ _x000D_ _x000D_ Features: _x000D_ This is a engine voltage regulator, AVR, rectifier. _x000D_ This rectifier is suitable for KDE3500 5000 6500 6700._x000D_ _x000D_ This voltage regulator is typically mounted on the engine and used to charge the battery. _x000D_ This regulator has 2 plugs with a total of 3 wires. _x000D_ If your generator has no output and/or your battery isn't charging, this is the part that most likely needs replaced. _x000D_ You must make sure that your generator has these same connections. _x000D_ _x000D_ _x000D_ Specifications: _x000D_ Model: 178/186 KDE3500 5000 6500 6700_x000D_ Applicable area: agriculture_x000D_ Accessories type: engine accessories_x000D_ Material: aluminum_x000D_ Color: as the picture_x000D_ Voltage: DC12V_x000D_ Size:as the picture _x000D_ Weight:198g _x000D_ _x000D_ _x000D_ Package Included: _x000D_ 1 x Voltage Regulator _x000D_ _x000D_ _x000D_ Special Note:_x000D_ 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._x000D_ Please note that the color of wire will be sent randomly, and make sure you will not mind before ordering. 1This is a engine voltage regulator, AVR, rectifier 2This rectifier is suitable for KDE3500 5000 6500 6700 3This voltage regulator is typically mounted on the engine and used to charge the battery 4This regulator has 2 plugs with a total of 3 wires 5If your generator has no output and/or your battery isn't charging, this is the part that most likely needs replaced