Volvo Penta 3868077 3857007 Cobra SX DP-S Upper unit Gearcase 4.3 1.66 1.43 1.51 Water Pumps 1985 1986 1987 1988 1989

1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1998

some of the major internal parts were the same

send your serial number and I can look into it further

This is from a 1937 Evinrude Sportwin 2

GM Part Number  14020553 which is interchangeable with 471595

Volvo Penta 3868077 3857007 Cobra SX DP-S Upper unit Gearcase 4.3 1.66 1.43 1.51 Water Pumps 1985 1986 1987 1988 1989Part Number(s) Included Volvo Penta OMC Joint Venture 3868077 3850966 3856181 3857007 Cobra SX Sterndrive Upper Gearcase Unit From a 4. 3L GL 1994 Model 22 23 Teeth For the Upper Gears General Application Compatibility So 1. 66 is stamped on the plate, but basically the uppers only came in 2 flavors and the lowers came in 5 flavors, 1. 66 reflected the "overall" ratio after combining the upper & lower, hopefully this guide clears up any confusion.