rebuilding this part, what are these called?

[jaychen]

The guys at my local auto-electical store are about as useless as **** on a bull.

Im replacing these bulbs on my diff lock switch as only one of mine worked but have nonidea what these bulbs are called.

Any help would be greatly appreciated

[UrS4boy]

Sometimes called "grain of wheat" bulbs.

[jaychen]

Dave, should have known it would have been you to school me.

Thanks buddy