Mercruiser Engine Coupler Kit | Sierra 18-2175

• Engine coupler is the flex plate triangular style for late model engines with small crankshaft bolt pattern
• Fits Mercruiser model 175 engines with serial number range B527955-B773242
• Fits Mercruiser model 205 engines with serial number range B527955-B775129
• Fits Mercruiser 4.3L engines from 1988 to 1993 with serial number range B527955-F000877
• Fits Mercruiser 305 model 200 engines 1985 to 1987 with serial number range 6899058-B774444
• Fits Mercruiser 5.0L Alpha engines with serial number range B774445-F000000
• Coupler is used on 4.3L OMC and Volvo Penta engines from 1986-98, 5.0L 1986-88 and 1998, 5.7L 1986-1992,1994,1996-1998
• Fits Mercruiser 5.0LX Alpha engines with serial number range B773740-F000000
• Fits Mercruiser 320 EFI engines with serial number range A543604-C622418
• This coupler is the flex plate style for late model engines with small crankshaft bolt pattern
• Fits Mercruiser 350 MAG Alpha engines with serial number range A635178-F000000
• Kit includes 18-2146 yoke shaft
• Replaces Mercury 18643A7, 12632A2, and 12632A4