I am getting my 540 motor dressed to be dropped in. I am making 675 h.p., 660 ft lbs torque in a single engine 4000 lb Checkmate. Which drive coupler would you recommend??

my boats similar weight and hp,i'm running new 575hp/xr coupler,it has steel splines,a long snout to support shaft,cost around 475 if i remember,Smitty

Vince,
I am running the same coupler as Artic. I was under the impression that style coupler is standard on all the Bravos now. There is a severe duty style coupler available but according to SterndriveSpec, it is not necessary. I was lucky to find mine on OSO as a new take out from Martin Marine. It was $219.00
Also, try emailing Kevin VanNatten at [email protected]
He seems to have some good pricing on Mercury outdrive related merchandise. He does a lot of business on Ebay.
Russ

Thanks.

I have delt with Kevin from Marine Power before. I have been to his place a few times. He is fair to deal with. I will be keeping an eye out for a deal on one.

I am also running a 540, here is the PN for the Merc HD Coupler:

861523A11- Coupler
59830A7- Yoke Assembly

They cost me around $500.