Isolator
This Isolator is a sheet metal component used to provide electrical isolation in the vehicle's body. It is a genuine John Deere part from Koenig Equipment, designed for use on various models including the 6125M, 6115M, and others listed.
Questions, answered
Will the Isolator fit my John Deere equipment?
Part #L203840 is listed to fit John Deere 6125M, 6115M, 6105M, 6130M, 6140M, 6130R, 6R 150, 6M 150. If you do not see your model, contact Koenig Equipment with your model and serial number and we will confirm the correct part.
Is this a genuine John Deere part?
Yes. Koenig Equipment sells genuine John Deere part #L203840, backed by John Deere's parts warranty and dealer support across Ohio and Indiana.
What does the Isolator do?
The isolator is used to separate and insulate components in the sheet metal and body parts of a John Deere machine.
How do I order the right part?
Have your John Deere model and serial number ready so the correct part can be confirmed. Order online for fast shipping, or contact your nearest Koenig Equipment store for help.

