Piston Rings CD10/CD12 Home › Forum › Ask A Member › Piston Rings CD10/CD12 This topic has 1 reply, 2 voices, and was last updated 3 years, 5 months ago by Mumbles. Viewing 2 posts - 1 through 2 (of 2 total) JimJReplies: 3Topics: 4 October 17, 2020 at 2:28 pm #218770 What is the latest update for rings 41-333. I’v gotten several different numbers and always ended up with the 3 rings per package, but always larger in diameter than the piston, such as; 378430 This topic was modified 3 years, 5 months ago by JimJ. MumblesReplies: 5764Topics: 298 October 20, 2020 at 9:26 pm #218983 378432 is the current part number but they only come in a pack of two now instead of three. Three packs will be needed to get six rings. 378430 (380108) rings are for 40 horse motors from the sixties. This reply was modified 3 years, 5 months ago by Mumbles. Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In