Does anyone have any good numbers for replacement/alternative glow plugs that will fit an 843 Bobcat with a Perkins 4.156/200 diesel engine? All four of my are "toast" as Tazza puts it! No heat at all from any of them. Voltage is good going to all four of them. Anyway, I started with my dealer who doesn't stock them for my machine but can get them for $36 each, then went to a Perkins dealer who doesn't stock them either and will order them for $54 each! They have to be gold plated or something. With all the manufactures of glow plugs, such as Bosch, NGK, Champion, Motorcraft, and the like, I can't find anyone around here in Lexington KY that can cross over the Perkins number (135318140A 12V) to another brand. I read bobbie-g's post where he found a Bosch number replacement for his Peugeot XUD9 engine. The Bosch number 80006 glow plug that bobbie-g found is not quite long enough to match the one in the Perkins engine. Anyway, surely there is another source out there somewhere.