[caver]

Farmers have the right to repair and John Deere has the right to deny your warranty if you don’t use their stuff.

[Still Thinking]

If it’s still under warranty I’m sure they’d be using factory service.

[Harmless Teddy Bear]

This has nothing to do with equipment still under warranty.

[BipolarBob]

Farmers have the right to repair and John Deere has the right to deny your warranty if you don’t use their stuff.

Ever hear of the Magnuson–Moss Warranty Act? They would have to prove the non-Deere part was defective to deny warranty claims or service.