Description
This is a gearcase gear set replacement for Mercruiser Alpha One 13:21 w/ No. 21593 (3.265 O.D.) (No.11092 + No.11013) all ratios except 2.0/2.4
Replaces:
- Mercruiser/Mercury 43-878087A4
Warning: Product may contain materials cautioned by California Proposition 65