Mercruiser Drive Impeller | Sierra 18-3017

Direct replacement impeller fits Mercruiser #1, MR, R, and Alpha 1 marine engines thru serial number D494568 as well as many Mercury outboards.

Mercruiser Drive Impeller | Sierra 18-3017

• Sierra Mercury impeller kit
• Fits Mercruiser #1, R, MR, and Alpha 1 units thru s/n D494568
• 2 11/32 in. diameter x 1 19/64 in. width x 7/8 in. keyed shaft
• Replaces Mercury 47-89984, 47-89984T4, 47-30221, and 47-65960
• Replaces Chrysler/Force 47-803631T, 47-F694065, and 47-89984T4
• Replaces OMC/Johnson/Evinrude 775460
• Replaces Mallory 9-4530