Skip to content

Sierra 18-2175 Mercruiser Engine Coupler Kit

Original price $309.99 - Original price $309.99
Original price
$309.99
$309.99 - $309.99
Current price $309.99

Sierra 18-2175 Mercruiser Engine Coupler Kit

  • 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

Flex plate style for late model small crankshaft bolt pattern style engines with 14 flywheel. Replaces:18643A7