Volvo Penta 3868077 3857007 Cobra SX DP-S Upper unit Gearcase 4.3 1.66 1.43 1.51 Piston Sets 25" - This was the

25" - This was the LONGEST pin that they produced

Years: 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968

This was really only found on the 1970's wiring harnesses as they more or less got rid of this feature in future wiring harnesses as it was a fire hazard

13-33734 Lock Washer

Volvo Penta 3868077 3857007 Cobra SX DP-S Upper unit Gearcase 4.3 1.66 1.43 1.51 Piston Sets 25" - This was thePart 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.