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M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

Another Spark Plug Question

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Old Sep 1, 2009 | 08:25 PM
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mchris350
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Another Spark Plug Question
My 2003 ML350 is ready for new spark plugs. The manual suggested Bosch
FR8DPP33 plugs. I ordered the plugs from an online parts house. When my order arrived, they shipped Bosch 7422 indicating the former plugs were superseded by the 7422 plugs.

Is it OK to use the 7422. I was concerned because the gap is wider on this plug.
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Old Sep 2, 2009 | 08:12 AM
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azinn's Avatar
azinn
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From: In A Van Down By The River
2014 RX 350 F Sport, 2007 Scion tC, 2000 ML 430 Money Pit Finally Gone! Oh Happy Day!
Originally Posted by mchris350
My 2003 ML350 is ready for new spark plugs. The manual suggested Bosch
FR8DPP33 plugs. I ordered the plugs from an online parts house. When my order arrived, they shipped Bosch 7422 indicating the former plugs were superseded by the 7422 plugs.

Is it OK to use the 7422. I was concerned because the gap is wider on this plug.
According to this ->http://www.sparkplugs.com/results_ap...1&AAIA=1419724 chart, that is the correct plug.
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Old Sep 2, 2009 | 03:10 PM
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Azinn,
Thanks for the reply. That's the info and chart I needed.
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