[itsahoot]

They would have to prove the non-Deere part was defective to deny warranty claims or service.

They will still deny it and force you to go to court yet again. Sort of like New York manages to avoid obeying Supreme Court decisions that tell them they can't forbid guns or CC permits in New York.

[BipolarBob]

The courts have already slapped their hands on this monopoly mindset and can’t risk another loss because the judgement may be punitive for repeated bad behavior.