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550 spark plugs

Discussion in '456/550/575' started by jznd, Jun 25, 2014.

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  1. jznd

    jznd Formula Junior

    Oct 26, 2008
    373
    Hong Kong
    #1 jznd, Jun 25, 2014
    Should be a simple question but I'm having trouble cross-indexing the right spark plug for a 550 Maranello.

    Champion's website claims 905 RA4HC, SKU#RA4HC.

    Cross-indexing to NGK, I find lots of NGK options.

    On NGK website, all years of 550 and 575 show either Standard DCPR9E or Iridium IX DCPR9EIX.

    Search of the archives doesn't bring anything up, so can anyone advise what should be used?

    Thanks!
     
  2. Ricambi America

    Ricambi America F1 World Champ
    Sponsor Owner

    Dec 7, 2003
    16,453
    Winston Salem, NC
    #2 Ricambi America, Jun 25, 2014
    DCPR9EIX.
     
  3. jznd

    jznd Formula Junior

    Oct 26, 2008
    373
    Hong Kong
    #3 jznd, Jun 25, 2014
    Perfect, thanks.
     
  4. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,191
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #4 tazandjan, Jun 25, 2014
    Daniel- Yup, that is what was just put in mine.
     

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