Fleetwin is correct – the piston rings used on the QD series of motors were the same. Part #301787 for a single ring or #378416 for the entire piston ring set.
Bob
1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1957 Evinrude Fastwin 18
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20
“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."
1 user thanked author for this post.