EXHIBIT 31.2

        CERTIFICATION OF THE CHIEF FINANCIAL OFFICER OF GENTEX CORPORATION

I, Enoch C. Jen, certify that:

         1.       I have reviewed this annual report on Form 10-K of Gentex
                  Corporation;

         2.       Based on my knowledge, this annual 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
                  annual report;

         3.       Based on my knowledge, the financial statements, and other
                  financial information included in this annual 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 annual 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)) for the registrant and have:

                           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 annual report is being prepared;

                           b)       evaluated the effectiveness of the
                                    registrant's disclosure controls and
                                    procedures and presented in this annual
                                    report our conclusions about the
                                    effectiveness of the disclosure controls and
                                    procedures, as of the period covered by this
                                    annual report based on such evaluation; and

                           c)       disclosed in this annual 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;

         5.       The registrant's other certifying officer 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):

                           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;

         6.       The registrant's other certifying officer and I have indicated
                  in this annual report whether there were significant changes
                  in internal controls or in other factors that could
                  significantly affect internal controls subsequent to the date
                  of our most recent evaluation including any corrective actions
                  with regard to significant deficiencies and material
                  weaknesses.

Date: February 26, 2004

                                                       /s/ Enoch C. Jen
                                                       ------------------------
                                                       Enoch C. Jen
                                                       Vice President, Finance

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