SEI New SEI / MerCruiser Alpha One Upper Gear Set (1972–1990) – 5.7L V8 – 1.47 / 1.50 Ratio – Replaces OEM 43-18410A4 MSRP: Was: Now: $367.28 Choose Options
SEI New SEI / MerCruiser Alpha One Upper Gear Set (1972–1990) – 5.7L V8 – 1.47 / 1.50 Ratio – Replaces OEM 43-18410A4 This SEI Marine Upper Gear Set is engineered as a direct replacement for MerCruiser Type I, R, MR, and Alpha One sterndrives from 1972–1990, designed specifically for 5.7L V8 engines. Featuring... MSRP: Was: Now: $367.28 Choose Options
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