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2003 ML 320: Engine:112942 31 305548, Transmission: 722662 03 807606, FrontAxelAL431020714752162233
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128 Posts
Discussion Starter #1
Anybody use Plugs from MD called KC10PYPB4 instead of what manual calls for? The parts department looked up my 2003 ML 320 and gave me part number A 004 159 50 03 64. They look like Champion Plugs Iridium Tip and brassy colored top. The manual called for Bosch F 8 DPP332 or Bosch F 8 DPER.

Anybody notice a difference in performance between these two?
 

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99 ML430, 00 ML320, 05 E500 4matic Wagon
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22,146 Posts
They are Champion. I am not a big fan of Champion plugs.
I would stick with the Bosch or NGK plugs.
 

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Registered
2003 ML 320: Engine:112942 31 305548, Transmission: 722662 03 807606, FrontAxelAL431020714752162233
Joined
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128 Posts
Discussion Starter #3
Lots of view 1 answer, question restated

Anybody use Plugs from MD called KC10PYPB4 instead of what manual calls for? The parts department looked up my 2003 ML 320 and gave me part number A 004 159 50 03 64. They look like Champion Plugs Iridium Tip and brassy colored top. The manual called for Bosch F 8 DPP332 or Bosch F 8 DPER.

Anybody notice a difference in performance between these two?
Lots of views only one answered. So I will restate the question in a different way. Anybody still able to get the Bosch F 8 DPP332 or Bosch F 8 DPER plug via the dealer or other source or is it obsolete and you have to accept alternatives?
Is there anybody running Bosch F 8 DPP332 or Bosch F 8 DPER and still likes them? Has anybody run the KC10PYPB4 from the dealer known as part number A 004 159 50 03 64 and likes them or has a specific experience with them.
 

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Super Moderator
99 ML430, 00 ML320, 05 E500 4matic Wagon
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22,146 Posts
The closest Bosch you will find to the old numbers are the FR8DPP33.
I have those in my E500 and the NGKs in the ML. I like the NGKs better. The MPGs went
up and the ML seems to idle a bit smoother than the E500 and the ML 140k more miles
on it than the E500.
 
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