I just had this experience.
Bike went into the shop for a deer accident and was there for 2 months before I got it back.
11 days later the top end gave out on the way home from work. Called them to come and pick it up on the road.
They had it another 2 months.
They replaced everything above the crankcase under ESP.
Also said they put the new oil pump in as mine had the old one.
While it was in, they told me it would be best to remove the relocation kit and reusable oil filter.
They said that if a rep came to look at it from Harley that they would deny the claim if they saw it.
Told them I would remove it when I got it home.
When I picked it up the technician that worked on it gave me some more information.
They have had 2 bikes with relocation kits fail mine with 77000 miles and another with 3000. Claimed that Harley stated that they see it all the time on the water-cooled bikes not the air-cooled ones.
He did show me why he thought this happens in the water-cooled bikes and I took this photo.
the shorter one is from a water cooled and the taller one is from an air cooled.
Makes no sense to me why there is a difference between them.
Also 2 data points with that many miles between them are irrelevant. Not to mention I don't know what brand was on the other bike or who installed it. I have installed all my mods.
Needless to say, if I have another issue, I will remove it before they see it but I will not run without it or any of the other mods I am running to cool the engine down. All of them are from DK Custom.
Do what makes you happy and ride safe.
Bob