<SUBMISSION>
<ACCESSION-NUMBER>0001209191-08-042407
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20080711
<FILING-DATE>20080714
<DATE-OF-FILING-DATE-CHANGE>20080714
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>CSK AUTO CORP
<CIK>0001051848
<ASSIGNED-SIC>5531
<IRS-NUMBER>860765798
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>645 E MISSOURI AVENUE
<CITY>PHOENIX
<STATE>AZ
<ZIP>85012
<PHONE>6022659200
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>645 E MISSOURI AVENUE
<CITY>PHOENIX
<STATE>AZ
<ZIP>85012
</MAIL-ADDRESS>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>WARD DALE D
<CIK>0001200324
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-13927
<FILM-NUMBER>08951402
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>280 PARK AVE
<STREET2>37TH FLR WEST TOWER
<CITY>NEW YORK
<STATE>NY
<ZIP>10017
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
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            <securityTitle>
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    <footnotes>
        <footnote id="F1">On July 11, 2008, pursuant to an Agreement and Plan of Merger dated April 1, 2008 (the &quot;Merger Agreement&quot;), OC Acquisition Company, an indirect wholly-owned subsidiary of O'Reilly Automotive, Inc. (&quot;O'Reilly&quot;), acquired a majority of CSK Auto Corporation's (&quot;CSK&quot; or the &quot;Company&quot;) issued and outstanding shares of common stock, resulting in a change in control of the Company.  Pursuant to the Company's 2004 Stock and Incentive Plan agreements, the reporting person's outstanding restricted common stock automatically vests upon a change in control of the Company.  These securities noted represent shares of restricted common stock that were withheld by the Company solely for the purpose of satisfying tax obligations arising upon the automatic vesting of reporting person's outstanding restricted common stock.</footnote>
        <footnote id="F2">Shares of CSK common stock exchanged for O'Reilly common stock pursuant to the Merger Agreement (0.4285 shares of O'Reilly common stock and $1.00 in cash for each share of CSK common stock), resulting in a market value of $10.7569 per share of the Company's common stock on the effective date of the merger.</footnote>
        <footnote id="F3">Upon the change in control of the Company, all unvested stock options held by the reporting person automatically vested, including the stock options from this grant.</footnote>
        <footnote id="F4">Pursuant to the Merger Agreement, each outstanding option to purchase CSK common stock was converted to an option to purchase O'Reilly common stock on substantially the same terms, except that the number of options was adjusted as prescribed by the formula set forth in the Merger Agreement, by multiplying the number of CSK options by 0.4724 and the exercise price was adjusted by dividing the CSK exercise price by 0.4724.</footnote>
        <footnote id="F5">Upon the change in control of the Company, all unvested stock options held by the reporting person automatically vested, including a portion of the stock options from this grant.</footnote>
        <footnote id="F6">This option grant is fully vested.</footnote>
        <footnote id="F7">Upon the change in control of the Company, payment in respect to these incentive bonus units in the future is to be based upon the excess of the per share transaction value of the merger consideration ($10.7569) over $20, no matter when the payment date occurs.  Because the per share merger consideration does not exceed $20 per share, there will be no payments made with respect to these incentive bonus units under the Long Term Incentive Plan.</footnote>
    </footnotes>

    <remarks>Executed pursuant to the Limited Power of Attorney for Section 16 Reporting Obligations dated October 17, 2005, and on file with the SEC.</remarks>

    <ownerSignature>
        <signatureName>Dale D. Ward


By: /s/ James R. Todd
Attorney In Fact</signatureName>
        <signatureDate>2008-07-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SUBMISSION>
