Emergency engine shutdown controls

[Navatech]

My Berty has emergency engine shutdown controls in the form of two "T" shaped handles (one on each side of the wheel) that connect to cables that connect to Detroit Diesel air flaps.

As is common for neglected boats (previous owner) these controls are now frozen and completely inoperable. I have tried applying WD40 down the cables. That didn't work so I'm guessing I need new ones.

Question # 1: do such cables come with the "T" shaped handles? Mine are quite nasty looking and one of them has a split locking nut.

Question # 2: what kind of cable would I be looking for? Preference towards cables that reduce maintenance!

Question # 3: where would I look to purchase them?

[IRGuy]

I took a quick look in my West Marine 2013 annual catalog and found the "utility control" handles and base brackets on page 653.. the cables I have seen used are standard throttle/transmission control cables found on page 652.. made by Teleflex.

[Navatech]

I took a quick look in my West Marine 2013 annual catalog and found the "utility control" handles and base brackets on page 653.. the cables I have seen used are standard throttle/transmission control cables found on page 652.. made by Teleflex.

Thanks for the help!