No this is not the correct one for you. It is provided with connection kits for Mercury. Based on your engine the B184 series is not a good option for you. A good option for you might be part number 309474 which is similar to this as it works with Johnson/Evinrude style cables.
I want to install this on 1985 Mariner 75hp O/B. The boat is a center console,the control needs to go on the right side with the leaver pointing aft in neutral, the control plate needs to be pointed down, my cabels come up from the deck. Can handle be moved the coorect position I need?
Uflex confirms that you can. It can be mounted in any of the 90 degree positions. So 90, 180, etc.
If I just get the lever, will it fit mercruiser 140 alpha one I/O?
You would need to get the whole unit with correct cables if you want to order this. For just a replacement lever you will need to check if you have the OEM remote or an aftermarket remote and see who the manufacturer really is. If you have further questions contact us at the number at the top of the page.