Hey I’m not too sure what you’re exactly asking for but the tags mention the pull start so I feel like this is what you’re looking for
https://www.amainhobbies.com/dynamit...BoCsKoQAvD_BwE
unfortunately I don’t know of the size of the spring but this is only 12$ and you also get another one way bearing, pull start, etc. Pull starts are notorious for failing after a while so I’d recommend this just so you have extra spares.
the part you linked is to eliminate the pull start entirely which is something the folks on these forums recommend - especially if racing as pull starts not only tend to fail, but can limit your engine’s performance at high rpms. Please keep in mind if you buy DYNE1503 you will also need a compatible starter box for your vehicle.
if you’re just bashing I’d get the pull start I linked.