Sierra Marine 18-21001 Mercruiser Gimbal Bearing

Non-greasable Mercruiser gimbal bearing from Sierra Marine. Sierra engine parts are designed to meet or exceed OEM requirements.

Fits: MC-1, R, MR, and Alpha (1974-97), Gen II Alpha (1991-97), Bravo I/II/III (1988-95)

Replaces:

• Mercruiser Stern Drive
• 30-879194A02
• 30-60794A4
• 30-60794B4
• 30-60794A2

Includes:

• (1) Permalube gimbal bearing
• (1) Grease passage plug

Installation Instructions for Sierra Gimbal Bearings:

• When changing the gimbal bearing to the permanently lubricated type, replace the grease fitting with the included grease passage plug.
• Remove the grease fitting from the side of the transom housing.
• Apply sealant to the threads of the grease passage plug.
• Use a 1/8" allen wrench to install the grease passage plug until fully sealed.