2004 390MY looking for specs on...

[O_Fred]

2004 390MY looking for specs on my props. Cummins 6CTA engines.

Traveling up the Mississippi we picked up a vibration above 1900 rpm.  It is taking time to haul the boat out, so I'm considering buying a second set of props.

22x22x1.75 or 24x27x2.0?

Other information?

Suggested supplier?

Archimedes is near St Charles.

[Rjw0127]

Hello, I use 24x25 2inch 4 blade on my 2007 40 Motor Yacht with Cummins QSB 5.9-425 and I would take a look at Acme propellers.

[Midnight_Run]

Your props will have a serial # on them that you can look up the exact size, pitch and cupping.

[O_Fred]

The props were returned and reinstalled, so I didn't have to replace them. Great feedback from y'all. Thanks.

[Rjw0127]

O Fred Just curious as to what size propellers do you have on your boat
Have a great trip.

[M___K]

We also have the 07. 40 MY with QSB 5.9 425 ho engines put props are 24”x25”. Lightly cupped 4 blade Nibral with 2” shaft. I recently had ours computer balanced and coated with Prop Speed. I thought mine were in good shape… but after computer balancing it made a huge difference. Added a few mph too.