Mercury Marine New OEM High Performance Gear Lube with Hand Pump, 91-8M0101435

Bought this for my 2017 mercury 15hp and the threads didn’t match the gear lube drain/fill hole. It’s a plastic fitting and maybe if it were brass, it might of worked. I had to taper the threads with my knife for it to work.

The pump has the wrong thread size and pitch for my 25 HP 2008 Mercury Outboard lower end. This is not the fault of the seller. However it would be better if the connector was better described. Some pumps come with adapters to fit virtually any outboard. I made my own adapter from some smaller tubing I had laying around. Not optimum. Also the clear tube is prone to fall off of the pump end.

Ease of use

Great kit for a lower unit service. Fit my friends 2008 60 hp Mercury with a 1.83 ratio perfectly.

Does not thread into lower unit for 8ph mercury 4 stroke. I took a chance and will have to order a different insert. Oil is correct for my model

The threaded end fitting, at the end of the hose, did not fit my drain plug on our 2015 Mercury 25 HP. I had to improvise.

Best part is the threaded tube end so you don’t have to hold it while pumping the lube.

Price was great and came with a pump. Delivered on time!

Works perfect

I liked it.worked good