Usually I can find these part numbers by poking around at diagrams online, but not this one. I'm thinking this is going to need to be replaced on my car, because my car, at times, wont start. I push the clutch in, turn the key, and nothing. It behaves EXACTLY like it does if I try to start the car without pushing the clutch in. I just keep turning the key (or sometimes just hold the clutch in and hold the key in the start position) and it eventually fires right up.

 

Are you going to replace it on a whim or are you trying to test what the actual problem is ?

First things first, the next time it doesn't start, check for voltage at the small wire going to the starter. If you get voltage the issue is related to the starter, most likely the starter contacts are bad. If you don't get voltage the issue can be anywhere from the ignition switch to that small wire. It can also be battery related(possibly connections dirty too), assuming the dash lights don't turn on when you turn the key to ignition 2.