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Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

I, Bruce M. Zorich, Chief Executive Officer of United Components, Inc. certify
that:



| | 1. |  | I have reviewed this quarterly report on Form 10-Q of United Components,
Inc.;                                                                                                                                                                                                                                                      
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| | 2. |  | Based on my knowledge, this quarterly 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 quarterly report;      
|
| | 3. |  | Based on my knowledge, the financial statements, and other financial
information included in this quarterly 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
quarterly report;                         
|
| | 4. |  | The registrants other certifying officer and I are responsible for
establishing and maintaining disclosure controls and procedures (as
defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal
control over financial reporting (as defined in Exchange Act Rules
13a-15(f) and 15d-15(f)) 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 other within those
entities, particularly during the period in which the report is being
prepared;



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| | b) Designed such internal control over financial reporting, or caused such
internal over financial reporting to be designed under our supervision, to
provide reasonable assurance regarding the reliability of financial reporting
and the preparation of financial statements for external purposes in
accordance with generally accepted accounting principles;



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| | c) 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



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| | d) 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 annual
report) that has materially affected, or is reasonably likely to materially
affect, the registrants internal controls over financial reporting; and



| | 5. |  | The registrants other certifying officer and I have disclosed, based on
our most recent evaluation, to the registrants auditors and the audit
committee of 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 controls over financial reporting which are reasonably
likely to adversely affect the registrants ability to record, process,
summarize and report financial information; and



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| | b) Any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrants internal controls
over financial reporting.

|                        |                                |                    
|----------------------- | ------------------------------ | -------------------
|Date: December 22, 2003 | By:                            | /S/ BRUCE M. ZORICH
|                        |                                |                    
|                        | Name: Bruce M. Zorich         
|                        | Title: Chief Executive Officer

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