Aftermarket Marine 

            
800-Fix-Boat

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850 mercruiser  engine coupler
Price: $89.95
Availability: In Stock
Item #: im850 -

Mercruiser engine coupler used on split rear engines with a 3.5 center to center bolt pattern on the crank.  Used on four and v engines until 1986. o.e.m. replacement 3 is 76850.

Triangle coupler Mercruiser for 14" FW
Price: $179.95
Availability: In Stock
Item #: im2175 -

Triangle coupler Mercruiser for 14" FW

Triangle coupler Mercruiser for 14" FW w/ shaft
Price: $199.95
Availability: In Stock
Item #: im2175s -

Triangle coupler Mercruiser for 14" Fly Wheel  w/ shaft.  The new coupler end shaft for the u-joint assembly is included. replaces 18-2175 from Sierra.