<SUBMISSION>
<ACCESSION-NUMBER>0001299933-08-003125
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20080623
<ITEMS>5.04
<ITEMS>9.01
<FILING-DATE>20080623
<DATE-OF-FILING-DATE-CHANGE>20080623
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>CSK AUTO CORP
<CIK>0001051848
<ASSIGNED-SIC>5531
<IRS-NUMBER>860765798
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>0204
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>001-13927
<FILM-NUMBER>08912755
</FILING-VALUES>
<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>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>htm_27787.htm
<DESCRIPTION>LIVE FILING
<TEXT>
<!-- CoverPageHeader start -->
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<TITLE> CSK Auto Corporation (Form: 8-K) </TITLE>
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		UNITED STATES<BR>
	SECURITIES AND EXCHANGE COMMISSION
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<BR>
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	WASHINGTON, D.C. 20549
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	FORM 8-K
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	CURRENT REPORT
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	Pursuant to Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934
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	Date of Report (Date of Earliest Event Reported):
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	&nbsp;
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	June 23, 2008
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	CSK Auto Corporation
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<BR>__________________________________________<BR>
	(Exact name of registrant as specified in its charter)
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	&nbsp;
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	Delaware
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	001-13927
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	86-0765798
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_____________________<BR>
	(State or other jurisdiction
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_____________<BR>
	(Commission
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______________<BR>
	(I.R.S. Employer
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	of incorporation)
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	File Number)
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	Identification No.)
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	&nbsp;&nbsp;
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	&nbsp;
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	645 E. Missouri Ave., Suite 400, Phoenix, Arizona
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	&nbsp;
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	85012
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_________________________________<BR>
	(Address of principal executive offices)
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	&nbsp;
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___________<BR>
	(Zip Code)
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	Registrant&#146;s telephone number, including area code:
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	&nbsp;
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	602-265-9200
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<P ALIGN="CENTER">
<FONT SIZE="2">
	Not Applicable
<BR>______________________________________________<BR>
	Former name or former address, if changed since last report
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<FONT SIZE="2">
	&nbsp;
</FONT>
<!-- CoverPageRegistrant END --><P><FONT SIZE="2">
Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any
of the following provisions:</FONT>
</P>
<P><FONT SIZE="2">
[&nbsp;&nbsp;]&nbsp;&nbsp;Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)<br>
[&nbsp;&nbsp;]&nbsp;&nbsp;Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)<br>
[&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))<br>
[&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))<br>
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<FONT SIZE="2">Top of the Form</FONT>
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<B>
	Item 5.04 Temporary Suspension of Trading Under Registrant's Employee Benefit Plans.
</B>
</FONT>
</P>
<P ALIGN="LEFT">
<FONT SIZE="2">
In connection with the tender offer by O&#x2019;Reilly Automotive, Inc. ("O&#x2019;Reilly") (through its wholly owned subsidiary) for each outstanding share of CSK Auto Corporation common stock (as previously announced via a joint press release with O&#x2019;Reilly and Form 8-K dated June 11, 2008) (the "Offer"), CSK Auto Corporation (the "Company") will be temporarily suspending or limiting employees&#x2019; participation in the Company&#x2019;s wholly owned subsidiary&#x2019;s (CSK Auto, Inc.) Retirement Program (the "401(k) Plan"). Specifically, participants will be subject to a blackout period with respect to transactions in the Company&#x2019;s common stock fund under the 401(k) Plan.  <br><br>To administer the process relating to the tender of shares of CSK Auto common stock held in the 401(k) Plan, access to CSK Auto common stock held in accounts under the 401(k) Plan must be suspended during the blackout period. During this time, participants in the 401(k) Plan who hold CSK Auto common stock in their accounts under the 401(k) Plan will be unable to engage in certain transactions involving CSK Auto common stock held in their 401(k) Plan accounts, including exchange, distribution and loan transactions. In addition, all participants in the 401(k) Plan, irrespective of whether they tender into the Offer or are currently invested in CSK Auto common stock under the 401(k) Plan, will be prohibited from making contributions or exchanges into the CSK Auto common stock fund under the 401(k) Plan as of the commencement of the blackout period. <br><br>Consequently, pursuant to Section 306(a) of the Sarbanes-Oxley Act of 2002 and Regulation BTR, the Company&#x2019;s executive officers and other Insider Group Members (including directors) will be subject to a blackout as described below. Pursuant to Rule 104(b) of Regulation BTR, on June 23, 2008, the Company provided notice to its executive officers and other Insider Group Members (including directors) informing them that a blackout period with respect to the 401(k) Plan will begin as of 4:00 p.m., Eastern Standard Time, on July 8, 2008 and is expected to end during the week of July 14, unless the Offer is extended beyond the initial scheduled expiration date of July 10, 2008, in which event the blackout period may also be adjusted. Subject to the provisions of the merger agreement with O&#x2019;Reilly, any CSK Auto common stock that participants have in their 401(k) Plan accounts will be automatically converted to O&#x2019;Reilly common stock upon the closing of the merger. The terms and conditions of the Offer are described in the Offer documents, which have been mailed to the Company&#x2019;s stockholders and are filed with the Securities and Exchange Commission. Completion of the Offer and consummation of the proposed merger are subject to satisfaction or waiver of certain conditions described in the Offer documents. A copy of the blackout notice is filed as Exhibit 99.1 to this Form 8-K and is incorporated by reference. <br><br>As a result of the blackout period under the 401(k) Plan, executive officers and other Insider Group Members (including directors) will be prohibited, pursuant to Section 306(a) of the Sarbanes-Oxley Act of 2002, from directly or indirectly purchasing, selling or otherwise acquiring, any shares of the Company&#x2019;s common stock or any derivative security tied to the value of the Company&#x2019;s common stock while the blackout period remains in effect. The prohibition covers any acquisition of the Company&#x2019;s common stock or related derivative security in connection with the covered individual&#x2019;s service or employment with the Company or any sale of the Company&#x2019;s common stock which the executive officer or director acquired in connection with his or her service in such capacity.<br><br>Any questions concerning the blackout period or the transactions affected by the blackout period, including the beginning and ending dates of the blackout period, are to be addressed to Vicki Moss, the Company&#x2019;s Senior Manager of Benefits at the Company&#x2019;s headquarters at 645 East Missouri Avenue, Suite 400, Phoenix, Arizona 85012 or by telephone at (602) 631-7119 or the Retirement Program Administrator at CSK Auto, Inc., P.O. Box 6030, Phoenix, Arizona 85005.
</FONT>
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<B>
	Item 9.01 Financial Statements and Exhibits.
</B>
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</P>
<P ALIGN="LEFT">
<FONT SIZE="2">
(d) The following exhibit is filed with this Form 8-K:<br><br>Exhibit No.   Description<br><br>99.1          Notice of Blackout Period to Executive Officers and other Insider Group Members.
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<B>
	SIGNATURES
</B>
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</P>
<P ALIGN="LEFT">
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	Pursuant to the requirements of the Securities Exchange Act of 1934, the
	registrant has duly caused this report to be signed on its behalf by the
	undersigned hereunto duly authorized.
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</P>
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	&nbsp;
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	&nbsp;
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	&nbsp;
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	&nbsp;
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	&nbsp;
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	&nbsp;
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<FONT SIZE="2">
	CSK Auto Corporation
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	&nbsp;&nbsp;
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	&nbsp;
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	&nbsp;
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	&nbsp;
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	&nbsp;
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<I>
	June 23, 2008
</I>
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</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
<I>
	By:
</I>
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
<I>
	Randi Val Morrison
</I>
<BR>
</FONT>
</TD>
</TR>
<TR>
<TD VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
	&nbsp;
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</TD>
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<FONT SIZE="2">
	&nbsp;
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<HR SIZE="1" NOSHADE>
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<FONT SIZE="2">
	&nbsp;
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	&nbsp;
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<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD>
<FONT SIZE="2">
	&nbsp;
</FONT>
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<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
<I>
	Name: Randi Val Morrison
</I>
</FONT>
</TD>
</TR>
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<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
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	&nbsp;
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<FONT SIZE="2">
	&nbsp;
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</TD>
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<FONT SIZE="2">
	&nbsp;
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<TD ALIGN="LEFT" VALIGN="TOP">
<FONT SIZE="2">
<I>
	Title: Senior Vice President, General Counsel and Secretary
</I>
</FONT>
</TD>
</TR>
</TABLE>
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<FONT SIZE="2">Top of the Form</FONT>
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	Exhibit&nbsp;Index
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<B>
	Exhibit No.
</B>
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	&nbsp;
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<B>
	Description
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<DIV ALIGN="LEFT">
	99.1
</DIV>
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<TD WIDTH="15%">
<FONT SIZE="2">
	&nbsp;
</FONT>
</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH="77%">
<FONT SIZE="2">
Notice of Blackout Period to Directors and Officers of CSK Auto Corporation dated June 23, 2008.
</FONT>
</TD>
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<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>exhibit1.htm
<DESCRIPTION>EX-99.1
<TEXT>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 3.2//EN">
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<TITLE> EX-99.1 </TITLE>
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<BODY style="font-family: 'Times New Roman',Times,serif">


<P align="right" style="font-size: 10pt"><FONT style="font-size: 12pt">June&nbsp;23, 2008</FONT>



<P align="center" style="font-size: 12pt">M E M O R A N D U M


<DIV align="center">
<TABLE style="font-size: 12pt" cellspacing="0" border="0" cellpadding="0" width="95%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="8%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="79%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom" style="font-size: 12pt">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">TO:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">CSK Auto Corporation Executive Officers and other Insider Group Members</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">FROM:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Randi Morrison</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom" style="font-size: 12pt">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">RE:
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Important Notice of Blackout Period Concerning Trading in Company<BR>
Stock, Including Stock Trades Within the CSK Auto, Inc. Retirement<BR>
Program</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="left" style="font-size: 12pt; text-indent: 4%">As you know, as a member of the Company&#146;s Insider Group, you are subject to Company policies
that restrict your trading in Company stock. These restrictions do not ordinarily apply to
non-discretionary automatic purchases of Company stock within the CSK Auto, Inc. Retirement Program
(the &#147;Plan&#148;). Effective with the blackout period described below, this exception to the Company
policies will no longer apply until further notice.


<P align="left" style="font-size: 12pt; text-indent: 4%">In connection with a tender offer by O&#146;Reilly Automotive (through its wholly owned subsidiary)
for each outstanding share of Company stock (the &#147;Offer&#148;), pursuant to the Company&#146;s definitive
merger agreement with O&#146;Reilly, there will be a period of time (&#147;blackout period&#148;) when Plan
participants will be unable to direct or diversify their investments in, or obtain a distribution
from, or take loans of money invested in, Company stock through the Plan. This period will begin
at 4:00 pm, Eastern Standard Time, on July&nbsp;8, 2008 and is expected to end during the week of July
14, unless the Offer is extended beyond the initial scheduled expiration date of July&nbsp;10, 2008, in
which event the blackout period may also be adjusted. Subject to the provisions of the merger
agreement with O&#146;Reilly, any Company stock you may have in your 401(k) Plan account will be
automatically converted to O&#146;Reilly common stock upon the closing of the merger. The terms and
conditions of the Offer are described in the Offer documents, which have been mailed to the
Company&#146;s stockholders and filed with the SEC. Completion of the Offer and consummation of the
proposed merger are subject to satisfaction or waiver of certain conditions described in the Offer
documents.


<P align="left" style="font-size: 12pt; text-indent: 4%">In addition, during the blackout period under the Plan as described above, you will not be
permitted, directly or indirectly, to purchase, sell or otherwise acquire or transfer any equity
securities of the Company (or derivative securities of those equity securities, such as stock
options)<B>, whether pursuant to the Plan or otherwise</B>. The prohibitions also apply to any direct or
indirect pecuniary interest you may have in such securities, such as Company stock held by
immediate family members living with you, or held in trust, or by controlled partnerships or
corporations.


<P align="left" style="font-size: 12pt; text-indent: 4%"><B>If you engage in a transaction that violates these restrictions, you may be required to
disgorge your profits from the transaction and you may be subject to civil and criminal penalties.</B>
The SEC regulations regarding blackout period restrictions are complex. To avoid any inadvertent
violations of the blackout period restrictions, you are required to follow our pre-clearance
procedures in connection with any proposed transaction in Company securities during the blackout
period. In addition, during this blackout period, the trading restrictions under the Company&#146;s
insider trading policy continue to apply.


<P align="left" style="font-size: 12pt; text-indent: 4%">If you have any questions concerning this notice, you should contact Vicki Moss, Senior
Manager of Benefits at 602-631-7119, or the Retirement Program Administrator at CSK Auto, Inc.,
P.O. Box 6030, Phoenix, Arizona 85005.



<P align="center" style="font-size: 10pt; display: none">


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