MerCruiser Alpha One Lower Unit Gearcase 3.0L 4.1L 5.0L 5.7L Gen I 1983-1990 steering wheel Notable Part Numbers Included (and

Notable Part Numbers Included (and everything else in the pictures) 43-54132 Ring Gear

Part # 376073 0376073

Spacer: 23-20658

MerCruiser 90740 Power Steering Cooler Superseded to 99356A1 (Which was slightly shorter than this one with the same inlet & outlet sizes)

but you may need to replace the bearings while you are in there

MerCruiser Alpha One Lower Unit Gearcase 3.0L 4.1L 5.0L 5.7L Gen I 1983-1990 steering wheel Notable Part Numbers Included (andItem 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