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Exhibit 31.02


CERTIFICATION

I, Don W. Watson, certify that:



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| | 1.     I have reviewed
    this quarterly report on Form 10-Q of CSK Auto Corporation;                                                                                                                                                                                                                                               
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| | 2.     Based on my
    knowledge, this report does not contain any untrue statement of
    a material fact or omit to state a material fact necessary to
    make the statements made, in light of the circumstances under
    which such statements were made, not misleading with respect to
    the period covered by this report;
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| | 3.     Based on my
    knowledge, the financial statements, and other financial
    information included in this report, fairly present in all
    material respects the financial condition, results of operations
    and cash flows of the registrant as of, and for, the periods
    presented in this report;                   
|
| | 4.     The
    registrants other certifying officer(s) and I are
    responsible for establishing and maintaining disclosure controls
    and procedures (as defined in Exchange Act Rules 13a-14(a)
    and 15d-14(a)) for the registrant and have:                                                                                



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| | a.     Designed such
    disclosure controls and procedures, or caused such disclosure
    controls and procedures to be designed under our supervision, to
    ensure that material information relating to the registrant,
    including its consolidated subsidiaries, is made known to us by
    others within those entities, particularly during the period in
    which this report is being prepared;         
|
| | b.     Evaluated the
    effectiveness of the registrants disclosure controls and
    procedures and presented in this report our conclusions about
    the effectiveness of the disclosure controls and procedures, as
    of the end of the period covered by this report based on such
    evaluation; and                                                                                                        
|
| | c.     Disclosed in this
    report any change in the registrants internal control over
    financial reporting that occurred during the registrants
    most recent fiscal quarter (the registrants fourth fiscal
    quarter in the case of an annual report) that has materially
    affected, or is reasonably likely to materially affect, the
    registrants internal control over financial reporting; and



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| | 5.     The
    registrants other certifying officer(s) and I have
    disclosed, based on our most recent evaluation of internal
    control over financial reporting, to the registrants
    auditors and the audit committee of the registrants board
    of directors (or persons performing the equivalent functions):



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| | a.     All significant
    deficiencies and material weaknesses in the design or operation
    of internal control over financial reporting which are
    reasonably likely to adversely affect the registrants
    ability to record, process, summarize, and report financial
    information; and
|
| | b.     Any fraud,
    whether or not material, that involves management or other
    employees who have a significant role in the registrants
    internal control over financial reporting.                                                                                                        



| |                        
| | -----------------------
| | /s/ DON W. WATSON      
| |                        
| | Don W. Watson          
| | Chief Financial Officer

September 16, 2003