MerCruiser 18643A5 18-2323 Alpha One Flywheel Engine Coupler V8 4.3L 5.0L 5.7L Waterski Tow Hooks & Pylons General Marine Applications:

General Marine Applications:

Includes Nuts 3852648 / 3853329 & Washers 3852573

Three of these look brand new and I'm sure were replaced - Generally we find these and most of the exterior coating is missing

This had good spark during testing

MerCruiser 18643A5 18-2323 Alpha One Flywheel Engine Coupler V8 4.3L 5.0L 5.7L Waterski Tow Hooks & Pylons General Marine Applications:MerCruiser V6 & V8 (1993 2015) Engine coupler for 14" Flywheels and engines that have a ONE piece rear main oil seal. If you have specific questions on compatibility, feel free to contact us. NEW Sierra Part Number 18 2323 *(MerCruiser 18643A5) Also found on 140hp GM 4cyl 3. 0L models with the 14" flywheel (1999 2016) This would be the A2 Model as the A5 had that tube sticking out of it which covered the yoke shaft. The A2 Model didn't have the