Are the a/m oil pumps on ebay any good? I'm working on a MS290 that needs one. It is $53 at the dealer.
Inconsistent... the worm gears are junk for sure. 1127 series? Farmertec? I’ve tried 660 and they seemed ok, haven’t messed with 1127 since oem are pretty ubiquitous. Try used oem. I may have an nos one in stock.
I decided to let the guy get the oil pump at the dealer. He uses the saw for work some so it is not worth trying to save a few bucks and have it crap it out when he needs it.