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Jeff G.
Jeff G., Marine Mechanic
Category: Boat
Satisfied Customers: 4724
Experience:  42 years experience, Certified Master Technician, All Major Outboards, Sterndrives, Hi-Performance
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I have a 19ft Stratos bass boat with a 175hp mariner outboard

Resolved Question:

I have a 19ft Stratos bass boat with a 175hp mariner outboard on it. I lost my prop while fishing and dont know what size the old one was. A friend of mine telling me to goto a 25 pitch with 14 and 3/4. Is that too big or small?
Submitted: 7 years ago.
Category: Boat
Expert:  Jeff G. replied 7 years ago.
Welcome,
I will be happy to assist you. If you have a question or need clarification please post back at any time.
Which year/ model number is XXXXX Stratos and what is the year of the engine?
Jeff
Customer: replied 7 years ago.
The boat is a 88 but not sure of the model, its a 18'9" im almost certian...the engine is a 92 or 93.
Expert:  Jeff G. replied 7 years ago.
Your best bet is probably a Trophy 14 X 24 or 14 X 25 stainless. Best all around prop for your application with the large gearcase. If you have the small gearcase XR or Magnum engines the 13 3/4 would be correct.
Thanks,
Jeff
Customer: replied 7 years ago.
how do i tell what gearcase i have?
Expert:  Jeff G. replied 7 years ago.
The 150 XR models used a 4 1/4" diameter gearcase. Yours should be a 4 3/4" diameter. I put the small gearcase in because some guys ran the smaller gearcase even on the larger HP boats.
Jeff
Customer: replied 7 years ago.
The diameter is where the prop meets the lower unit?
Expert:  Jeff G. replied 7 years ago.
The back of the bullet, where the propshaft is, measure side to side.
Customer: replied 7 years ago.
Do I measure to the inside of the gear case or outside?Mine is 4 1/4 inside.
Expert:  Jeff G. replied 7 years ago.
Outside diameter. so you want the 14 X 24 or 25 prop.
Jeff
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