Yes, that looks like a 15p.
But props can be repitched so how it preforms is what counts.
Also based on my experience working the parts counter for a not so good dealer. As I would go through the process of trying to determine the correct prop. I was surprised to find that many boaters don't know what engine they have. I had one customer that was sure they had a 14' Lund with a 260 MerCruiser! Another that didn't even know what brand boat they had, much less what engine was on it. "it's a red boat with a white engine and I want a prop that will let me go 55 MPH, you know, a speed prop". My way of handling this was to ask them to come back with more info or their old prop. My supervisor was quick to correct me. I was told to "sell these idiots whatever prop we have the most of, if it doesn't fit or work right they can bring it back". So I guess what I'm trying to say is, just because the you bought the boat with a prop on it doesn't mean it's the right prop.
Your engine should be able to reach Full throttle operating range 4600 – 5000 RPM with the boat loaded as you you usually use it and trimmed out to max speed. You should use a scan tool or shop tach because the tach on the dash is usually not correct.
But props can be repitched so how it preforms is what counts.
Also based on my experience working the parts counter for a not so good dealer. As I would go through the process of trying to determine the correct prop. I was surprised to find that many boaters don't know what engine they have. I had one customer that was sure they had a 14' Lund with a 260 MerCruiser! Another that didn't even know what brand boat they had, much less what engine was on it. "it's a red boat with a white engine and I want a prop that will let me go 55 MPH, you know, a speed prop". My way of handling this was to ask them to come back with more info or their old prop. My supervisor was quick to correct me. I was told to "sell these idiots whatever prop we have the most of, if it doesn't fit or work right they can bring it back". So I guess what I'm trying to say is, just because the you bought the boat with a prop on it doesn't mean it's the right prop.
Your engine should be able to reach Full throttle operating range 4600 – 5000 RPM with the boat loaded as you you usually use it and trimmed out to max speed. You should use a scan tool or shop tach because the tach on the dash is usually not correct.