And what would glow plugs purchased at the $tealer be considered? Are they Bosch aftermerket, since they arent installed in the cars at the factory, and are being used in a 20 yr old car, or are they first, top quality?

That is very interesting about bosch wires. I have some on my car...

JMH

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (116k)
1991 350SD (206k)
1991 300D (228k)
2008 ML320 CDI (199k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (267k)

Past Diesels:
1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)