Description
SIERRA Non-Greasable Gimbal Bearing for MerCruiser Alpha/Bravo – 18-21001 is a non-greasable replacement gimbal bearing for selected MerCruiser transom assemblies.
This permanently lubricated design is supplied with a grease-passage plug for conversions from a serviceable bearing. It covers older Alpha-family and early Bravo applications through the listed production ranges.
Key Features
- Non-greasable permanently lubricated bearing design
- Fits MC-I, R, MR and Alpha applications from 1974-1997
- Fits Alpha One Gen II applications from 1991-1997
- Fits Bravo I, II and III applications from 1988-1995
- Includes grease-passage plug for the transom-housing grease fitting
Specifications
- Manufacturer Part Number: 18-21001
- Product Type: Gimbal bearing
- Lubrication: Permanently lubricated / non-greasable
- Included: Permalube bearing and grease-passage plug
- Application: Selected MerCruiser Alpha/Bravo transom assemblies
Interchange / Cross Reference
- MerCruiser 30-879194A02
- MerCruiser 30-60794A2
- MerCruiser 30-60794A4
- MerCruiser 30-60794B4
Follow the service-manual procedure when replacing a greasable bearing with the permanently lubricated design.
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