Thank you for contacting the AnswerARMY.
The 141 could have been supplied with 2 different pitches of chain, while the 137/142 was supplied with only 1 pitch of chain but 2 different gauge's of chain. So the chains will not necessarily interchange.
You will need to determine what chain your saw uses and then compare the specs of the chain to the one you want to use the pitch and gauge MUST match.
Thank you for contacting the AnswerARMY.
The 141 could have been supplied with 2 different pitches of chain, while the 137/142 was supplied with only 1 pitch of chain but 2 different gauge's of chain. So the chains will not necessarily interchange.
You will need to determine what chain your saw uses and then compare the specs of the chain to the one you want to use the pitch and gauge MUST match.