Sierra 18-2176 OMC 908063 0908063 Ball Bear Stringer Intermediate Housing SEI Exhaust Manifold Old Design: The 2 pieces

Old Design: The 2 pieces (upper and lower pipes) bolt together

Carb Body: 379033

Replaced By / Should be mostly Equivalent to Volvo Penta 3850799 & OMC 987784

This has the 3" Throat opening for 2-barrel Rochester & MerCarb carburetors

Specifics: 12-3/4" x 21P

Sierra 18-2176 OMC 908063 0908063 Ball Bear Stringer Intermediate Housing SEI Exhaust Manifold Old Design: The 2 piecesPart Number(s) Included Sierra 18 2176 > Replaces OMC 908063 0908063 Ball Gear Aftermarket Ball Gear both Sierra & SEI sold the same one and can be used to replace an OEM ball gear as well. Still a lot of life yet About 85%+ Remaining (see pictures) General Application Compatibility OMC Stringer Intermediate Housing Side Ball Gear All OMC Stringer Sterndrive applications 1973 1985 i. e. 4cyl, 6cyl V6, V8 120hp,140hp,165hp, 170hp, 175hp, 190hp ,225hp