*1972-1979 Mercury 4921A 1, 4921A1 Lower Unit Gearcase Housing 3.9-4-4.5-6-7.5-9.8 HP Vintage*Part Description: *Mercury Lower Unit Gearcase Housing 3. 9 4 4. 5 6 7. 5 9. 8 HP* Part Name: Part Number(s): 1630 4921A1, 4921A 1, 4921A1 Model Fitment(s): 1972 1979 Condition Description Notes: Very good condition ; a new Skeg has been welded on. Long (20") shaft model. Retail Price: now Obsolete Donor Motor: 9. 8hp Mercury model 110, serial# 2391089 This should fit: Mercury Gear Housing Assembly part numbers: 1630 4921A1, 4921A 1, 4921A1 The

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