it is recommended to inspect the impeller annually and replace the entire water pump kit every 1-2 years or every 100-200 hours of operation
A: The best way is to check your current part number against the ones listed in our cross-reference table
Evinrude HP Range 60–75 HP Year Range 1969–1988 OEM Part Number 18-3669
Reinstall the air filter and air intake cover
we recommend replacing the water pump impeller and gaskets every 1-2 years or every 100-200 hours of use
Upper Gear Housing Seal Kit – Fits MerCruiser R, MR & Alpha One Gen I Drives (Replaces 26-32511A1, 18-2648) family-mercury-300hp it is recommended to inspectUpper Gear Housing Seal Kit Fits MerCruiser R, MR & Alpha One Gen I Drives This comprehensive seal kit is designed for MerCruiser #1, R, MR, and Alpha One Gen I sterndrives manufactured from 1964 through 1991 (serial numbers 1684188 to D469858). It contains all the necessary gaskets, o rings, and seals to service the upper gear housing unit, preventing water intrusion and oil leaks. This kit is a direct replacement for multiple OEM and aftermarket