Check out these glow plugs.

Glow Plug - Ford 6.9 L IDI (Spade Terminal)


Wonder if they're really as good as they say.

 

for 10-12 more bucks online you can just buy a set of 8 motorcraft/beru's and save the guess,as to if they will last,or worst swell up in the head and break off when you go to change them, causing you to lift a motor,pull a head or two,replace head gaskets,and other gaskets required,and that's after the hard work of extracting the things,or paying a machine shop to do it.

short answer;
i doubt they're worth the dime to chance it.

 

You could sell them to these weird kids for body jewelry........thats all I would try with them...

 

I like that there is not a mention of who the actual manufacturer of the plugs is.

USA made, manufacturer for military glow plugs, dual coil design, something tells me they are probably Wellmans.

Not something I would be interested in.