New Marine Mercruiser Engine Coupler Replacement for Mercury 18643A5 & Sierra 18-2323 | Durable Boating Accessories for Smooth Engine Performance on Water

looked great but is off center. seller told me to call Sierra which I did and they are sending a new one to replace. guess we will see when it gets here. Seller has also offered to refund pending return but I will be trading it out with Sierra under warranty. If this one comes offcenter I will buy the more expensive Mercruiser 18643A5 for my 1998 5.7 Mercruiser EFI, in my sea ray 210 sundeck.sierra just told me they dont have the part so i will be returning for refund.just what I needed at a resonable. pricecame 4 days earlier was suppost to get on 16 th got 12th 9am extremely happy with part and everything about the purchase thank youPerfect fit for my 4.3 lx mercruiser. Not much more I can say.El repuesto llegó sin problemasReturned part. Not as described, off center and will not allow outdrive to be properly installed. Tried to get replaced, and all were the same. Don’t waste your time.This part is 12.5 x 12.5 in. Over all and the mounting holes are 11 in. Center to center.Fits. Does what it is supposed to do