
Sierra 18-2257 Upper Gear Kit Specifications:
- Ratio: 1.65:1
- Replaces:
- GLM 11225
- Mercury Marine 43-803112T1
What’s in the Box:
| Item # | Quantity | Description |
|---|---|---|
| 18-1160 | 1 | Drive Bearing Kit |
| 18-1161 | 1 | Tapered Roller Bearing |
| 18-1165 | 1 | Tapered Roller Bearing |
| 18-2203 | 1 | Upper Unit Gear Set |
| 18-2619-1 | 1 | Outdrive Gasket Set |
| 18-2648 | 1 | Upper Unit Seal Kit |
| 18-2743 | 1 | Outdrive Mounting Gasket |
| 18-2820 | 1 | Outdrive Gasket |












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