I think dealers "depend on" tractor owners like me. People who are trying to keep their tractor "all Brand" parts, especially while under warrantee. Then there are other ideas. I was wondering how much a Kubota battery cost. So I asked the dealer. It was about $120. I told them, Sounds kinda high to me. He said "yes it is. But we get many reports of Kubota batteries lasting 10 years." So I read some of the posts on TBN - that statement seems to be mostly true. Then I realized that my tractor battery was going on 6 years. My car and truck batteries all were over $100 and none of those lasted more than about 4 years.
So, now a have to believe the parts we buy from the dealer may be better that those cheaper options. Maybe the manufacturer will have to "eat " the cost of the part and labor if under warrantee and the cost of lost business as a result. Don't know. That pump for $140 may be the last you have to buy. I hope so. I guess I tend to believe the dealer part MIGHT be better than a part bought on ebay if is does not have any production information about the part.
Many years ago, I worked part time at a parts house. We sold NEW parts, REMANUFACTURED parts, and REBUILT parts.
NEW - well, we know what that is.
REMANUFACTURERED parts - Parts that have been reprocessed and were certified up to manufacturer specks
REBUILT - Parts that have been cleaned and repaired. Maybe one rubber seal of diaphram replaced, then cleaned, repainted.
All with different life expectations and different costs.
For years, there have been products that were difficult for the public to know the real value of before buying. Jewlery, watches, and cameras. I think today, we can add parts. $140 for a dealer part does sound a little high. But we seem to be in times that there is no limit. This is what I think is high now - everything. Including these two examples.
1/2" OSB 5 yr ago $8.68 a sheet......2 months ago - $19.99 ....Last month $40.99 a sheet.
PVC 3" x 10' drain pipe Schedule 40 2 years ago...$16.99 - Yesterday $41.99. Or $23.99 for a 2' piece.
Probably lucky that the dealer had the part. Who knows, it may not be long until it will be $140 + $65 restocking fee, or just order it for $140 and try to get it. Best wishes, sorry so long.