Bosch Spark Plug 7406 or 4417 - Club Touareg Forums
 
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post #1 of 3 Old 12-02-2014 Thread Starter
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Bosch Spark Plug 7406 or 4417

It seems that there's been a lot of controversy around the plugs, and finding the proper part number (Bosch #7406 FGR7KQE0) wasn't as easy as it should've been.

My question is who has switched from OEM to the Bosch #4417 FGR7DQP on their AXQ V8 touareg (AXQ 4172 CC 4.2L)?

They seem to be used quite a bit in the Audi S4 v8 (4172 CC 4.2L) and vw phaeton (BGH 4172 CC 4.2L), which all seem to be very similar engines.

FAQ: What are the correct spark plugs for my B6/B7 S4?

VWVortex.com - How to access and change spark plugs on the V8 engine [TOC])
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post #2 of 3 Old 12-07-2014 Thread Starter
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bueller... ?
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post #3 of 3 Old 12-10-2014
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For my 2007 V6 it came with NGK Iridium spark plugs from the factory. I replaced them with aftermarket NGK plugs.

In the Bosch e-catalog they list 7406 (super plus copper) and 6910 (fine wire iridium) for the 2004 4.2L V8. I did not see 4417 in Bosch's e-catalog. Maybe 4417 is superseded?

I would use the iridium.

7406:

And 6910 iridium:
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