$120 · Mercruiser Alpha 1 Lower Unit Gear Set 18-2206-1
Brand New Sierra Marine 18-2206-1 Gear Set. Replaces 43-17064A3
Fits All Mercury Marine MR/Alpha/Gen II (except Gen II 2.00 - 2.40 ratios). Fits Units with no pre-load pin in the top of driveshaft.