Sierra Marine 18-2175 Engine Coupler Kit

Sierra 18-2175 Engine Coupler Kit With New Yoke. Replaces Mercruiser part # 18643A7. Fits 4.3-Liter, 5.0-Liter and 5.7-Liter and some 357, 377, 6.2 liter Engines with 14" Flywheel, 3" bolt pattern and 1-piece rear main seal and Mercruiser Alpha Sterndrives only. Supplied with new style "yoke". Fits late style GM (Chevy) 3.0-Liter, 4.3-Liter, 5.0-Liter and 5.7-liter engines with 14" flywheels,. Also some early 7.4-Liter engine using Alpha Sterndrive. (Note: if you have newer yoke, see Coupler part # 18-2323 sold with out yoke). Includes mounting bolts and washers