MerCruiser Alpha One Lower Unit Gearcase 3.0L 4.1L 5.0L 5.7L Gen I 1983-1990 Lower Unit Splined Spacer: 23-65439

MerCruiser Alpha One Lower Unit Gearcase 3.0L 4.1L 5.0L 5.7L Gen I 1983-1990 Lower Unit Splined Spacer: 23-65439Item Details Compatible with all upper alpha one Units (MC 1 R MR Gen 1) from 1970 1990 (the case style is 1983 1990) Regardless of engine (120hp 2. 5L 140hp 3. 0L 165hp 170hp 305 350 470 2. 5L 3. 0L 4. 3L V6 5. 0L 305 5. 7L 350 V8 etc) It comes empty. Make sure it gets filled with the proper gear oil from the bottom up. Comes with new impeller installed. No leaks or bad seals found after pressure testing. Gear oil will be drained before shipping. No

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