Sierra 18-2174 U-Joint Heavy Duty, greasable, Late Model Alpha and Bravo.

Replaces Mercruiser part 75832A3, 758321 and 75832T1.

Fits Alpha 1 Gen 1 S/N  6225577 to OF386995 1983-1990

Fits Alpha-1 S/N B418819 and above. Approximate years 1991 thru 1995

Also fits Alpha-I SS and Bravo units.

Also replaces OMC 915717 and 3850812. OMC Cobra, and King Cobra Drives 1990-1998.

Volvo-Penta SX drives up to 1996. Includes straight and 90° grease fittings.