Prop Exhaust Seal Ring for 150 Pro XS 4S

[contium]

Can anyone give me a part number for a prop exhaust seal ring for a 23P Trophy+ prop on a 150 Pro XS 4S? The Trophy+ blows out on hole shot with rpms around 5500. I also have a 24P Tempest plus which has a great hole shot. Want to get the Trophy+ working also. PVS are all plugged. Trophy+ handles great once on plane.

Mercury 150 HP Pro XS
Model Number 1152F131D
Serial Number 2B607966
2019

[EuropeanAM]

Make sure the nylon protective ring is still present in your gearcase (important). If not, replace.

878421 is what is commonly used on a small-bore Trophy (so that you can use it on a standard-bore, 4.75" gearcase).

[contium]

The boat came with a Tempest+. Would it have the nylon protective ring?

[contium]

Here is what I have:

lu.jpg

[EuropeanAM]

Thanks for the picture- which reminds me that your gearcase isn't equipped with the nylon protective ring.

Tempest plus would NOT have had any spacer. 878421 should be what you need.