Pilot Assembly Replacement

I'm a homeowner with an old Slant Fin boiler. Turned on the heat recently and the pilot would go out at times. I replaced the thermocouple, but it still gone out sometimes after a heating call. I suspected the gas tubing was leaking or the nozzle was the issue. I didn't want to go and replace the gas valve without trying out a new assembly so I bought this Pilot Assembly and it's been working fine so far. I'm not sure if this was the right assembly to use and will I have issues down the road.