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.