Sierra 18-2321 Engine Coupler 

• This triangular style engine coupler is for GM 4 cylinder engines with late style; small crankshaft bolt pattern
• Fits Mercruiser model 3.0LX engines from 1994 to 1998 with serial number range F000001-L096999
• This is the same as the 18-2195 without the yoke shaft
• Replaces Mercury 12632A6
• Replaces Mallory 9-72506

Engine CouplerFlex plate for GM 4 cylinder engines with late style; small crankshaft bolt pattern. Same as 18-2195 without the yoke