[Vwdiesel] glow plug relay part numbers - kracker - bosch - VW

Will Taygan william at taygan.com
Mon Oct 4 18:35:25 EDT 2004

I had silver (slow) glow plugs in the 81 pickup, with a kracker brand
relay, didn't know if it was a fast or slow relay. I did a bit of
digging and found the kraecker (kracker) part number page: 


Turns out I was using a fast relay with slow plugs for the past year.. 
Plugs are fine, relay is fine, but the truck starts much better with
the new fast plugs, especially since I've moved to Alaska (sheepish

Here's the scoop, though it's not exactly the same as the info on
Roger's site http://www.4crawler.com/Diesel/GlowPlug.shtml (VW slow
part # is transposed, I think the below # is correct, and the fast
bosch # is completely different):

Fast glow plug relay (glow-automatic-timer-relay):
VW 171 911 261 C,D OR E
BOSCH 0 333 402 512
KRACKER 24.4100.10

There is also the VW 191 911 261C (glow-time-combination-relay) which is
the BOSCH 0 281 003 099 or KRACKER 27.0100.10 which Roger has as the
bosch # for the fast relay, I can't verify what this relay is for as
EKTA is unavailable at the moment.  Can someone confirm this?

Slow glow plug relay:
VW 321 911 261 C
KRACKER 24.3400.10

I'm using bosch (brass) fast plugs VW 0 250 201 032
previously I had bosch (silver) slow plugs VW 0 250 200 052


Will Taygan
1981 VW diesel pickup
Anchorage, AK

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