earlwb

It doesn't look like Fox makes glow plugs anymore either. Tower Hobbies shows the Fox plugs as being discontinued.
When I was in at the local hobby shop a few days ago, they were just about out of glow plugs too. All they had was one plastic parts box with some glow plugs in it.
We may be forced to buy our glow plugs from the internet sites pretty soon.
Merlin still makes a large assortment of glow plugs and heat range types though. If I remember correctly Merlin makes the house brand plugs like Tower Hobbies and some of the others sell too.

I remember being able to buy a card of 12 to 16 glow plugs off the rack at the hobby shops. It doesn't look like you can do that anymore. Normally a person would break off a few plugs from the whole card, or they would buy the whole card.