THANKS to jdemaris for posting the info on the Bosch 80035 Duraterm glowplugs!
I recently converted my 424 to the new style, and added a (modified) GM controller, so they are automatic.
Starts without ether for the first time in the 25 years I've owned it!
<img src = "http://i167.photobucket.com/albums/u125/27Grainfield/424IH/glo424_zps283d8452.jpg">
<img src = "http://i167.photobucket.com/albums/u125/27Grainfield/424IH/80035_zps1ff48b19.jpg">
I recently converted my 424 to the new style, and added a (modified) GM controller, so they are automatic.
Starts without ether for the first time in the 25 years I've owned it!
<img src = "http://i167.photobucket.com/albums/u125/27Grainfield/424IH/glo424_zps283d8452.jpg">
<img src = "http://i167.photobucket.com/albums/u125/27Grainfield/424IH/80035_zps1ff48b19.jpg">