necessary to replace cups when removing injectors?

[That Other Guy]

As the title says is it necessary, i need to pull an injector to retrieve a busted glow plug i need to punch through into the cylinder. i was gonna pull injector and use pencil magnet before pulling head. Only question now is do i need to replace the cup when i do it.

[That Other Guy]

Never done it before and need to know, trying to get a truck back to life on a time frame here.

[Sam Burton]

no, if your injector cups are in good shape there is no need to replace them.

[That Other Guy]

Cool i didnt think so but wasnt sure, i need to pull the one but needed to know if i had to replace that cup before putting it back. Thanks for the reply.