Includes tolerance ring - bearing must be lubricated when assembled (does not
come pre-greased) Always replace the oil seal when installing a new
bearing #21905 Alpha 1 gimbal bearing replaces GLM #21900 OEM #30-862540A3, 30-60794A4
| Use with all Mercruiser outdrives |
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| 21900 alpha one gimbal bearing heavy duty |
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