Sierra Part Number 18-2323. The same as 18-2175 without Yoke. Hardware Included. Replaces: Mercury 18643A5, Sierra 18-2323, Marine Power 0007-990F7. Flexplate-style for late model, small crankshaft bolt pattern-style engines.
Engineered Marine Products 93-93600. This triangular style engine coupler is for GM 4 cylinder engines with late style, small crankshaft bolt pattern. Fits 3.0L/181ci Engines where the coupler mounts to the Flywheel and not the crankshaft. Includes Mounting Hardware.
For 1990-98 Alpha One & Alpha Gen II (LX model) transom. Triangular style 12¾" flywheel. Mounting bolts and washers included. Engineered Marine Products 93-93600. Replaces MerCruiser 12632A6 and Sierra 18-2321.
For Older model MC-1 & R/MR/Alpha One drives with older Chevy & GM V6 & V8 engines with 2 pc. rear main seals. This coupler is used on pre-1985 MerCruiser 350 ci or 305 ci engines, with what is commonly called a "two-piece rear main seal" or "split seal". Replaces Mercruiser 76850A2, 32492A5, and Sierra 18-2171.
Mercruiser Bravo Engine Coupler by Sierra. Will work on Bravo I, Bravo II, and Bravo III. Includes all mounting hardware. Replaces: Mercruiser 18311A17, Mercruiser 861523A-9, Mercruiser 8M0098795, Mallory 9-72503, and Sierra- 18-2412.
Mercruiser Bellhousing Shift Arm for 1983-91/1996-98 R/MR/Alpha One & Alpha Gen II bell housings. Replaces Mercury 45518A3, 45518A2, 45518B3, 45518B2, 45518A1, Sierra 18-2161, GLM 21140, Mallory 9-72153.