Sierra 18-4804 Complete Upper Gear Housing with 21:16 Ratio for OMC 5.7L/5.8L
Sierra 18-4804 Complete Upper Gear Housing with 21:16 Ratio for OMC 5.7L/5.8L
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Sierra 18-4804 Complete Upper Gear Housing with 21:16 Ratio for OMC 5.7L/5.8L

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Key item features

  • Designed for use in OMC 5.7L (1986-1993) and 5.8L (1986-1989, 1991-1993) I/O engines
  • Features a 21:16 ratio
  • Interchangeable with OMC Stern Drive 983888, 984770, 985241, and 986381
  • Each Sierra product meets or exceeds the original equipment part it replaces
Current price is $3,230.63
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