For auction we have a twin disc marine transmission adapter plate. I have taken as many picture as you may need to identify this item. Very heavy adapter. This item will fit a variety of marine engine applications.

Twin disc model PN B5690

MG5011-A

MG5010-A

MG5010-SC

MG502

Cummins PN 3349066

QSB 5.9L & 6BTA

Also fits cat, Volvo, Deere, Yanmar and many others

Please check your model and maker to identify this item will work with your engine and transmission.