go to nissanclub.com and there is a big parts cross reference list. says you can put a ka24de sensor in an sr but it's by chassis not motor. but doesn't say which temp sensor though. must be for the other one cause that would be for a different ecu. i think the one to the dash is universal for all chassis. well i'm no expert but i'll keep trying to help.lol also search 240sx parts cross reference temp sensor..some alternative ideas on that search as well..later!