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Sierra Marine 18-21001 Gimbal Bearing 30-879194A02

Out of Stock. Available to order (Approx 2-4 weeks)
Marine Parts

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)


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


  • (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.
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