Exhibit 3.5

                          CERTIFICATE OF INCORPORATION

                                       of

                           AFFINIA GROUP HOLDINGS INC.

     The undersigned, in order to form a corporation for the purpose hereinafter
stated, under and pursuant to the provisions of the Delaware General Corporation
Law, hereby certifies that:

     FIRST. The name of the corporation is Affinia Group Holdings Inc. (the
"Corporation").

     SECOND. The address of the Corporation's registered office in the State of
Delaware is Corporation Trust Center, 1209 Orange Street, Wilmington, County of
New Castle, 19801. The name of its registered agent at such address is The
Corporation Trust Company.

     THIRD. The purpose of the Corporation is to engage in any lawful act or
activity for which corporations may be organized under the Delaware General
Corporation Law or any successor statute.

     FOURTH. The total number of shares of stock which the Corporation shall
have authority to issue is 1,000 shares of common stock, par value $0.01 per
share.

     FIFTH. The name and mailing address of the incorporator is Jason Hwang,
Simpson Thacher & Bartlett LLP, 425 Lexington Avenue, New York, New York 10017.

     SIXTH. The board of directors of the Corporation, acting by majority vote,
is expressly authorized to adopt, alter, amend or repeal the bylaws of the
Corporation.

     SEVENTH. The Corporation reserves the right to amend, alter, change or
repeal any provision contained in this Certificate of Incorporation, in the
manner now or hereinafter prescribed by statute and all rights conferred upon
stockholders herein are granted subject to this reservation.

     EIGHTH.

     1. To the fullest extent permitted by the Delaware General Corporation Law
as the same now exists or may hereafter be amended, the Corporation shall
indemnify, and advance expenses to, its directors and officers and any person
who is or was serving at the request of the Corporation as a director or
officer, employee or agent of another corporation, partnership, joint venture,
trust or other enterprise. The Corporation, by action of its board of directors,
may provide indemnification or advance expenses to employees and agents of the
Corporation or other persons only on such terms and conditions and to the extent
determined by the board of directors in its sole and absolute discretion.

     2. The indemnification and advancement of expenses provided by, or granted
pursuant to, this Article Eighth shall not be deemed exclusive of any other
rights to which those




seeking indemnification or advancement of expenses may be entitled under any
bylaw, agreement, vote of stockholders or disinterested directors or otherwise,
both as to action in such person's official capacity and as to action in another
capacity while holding such office.

     3. The Corporation shall have the power to purchase and maintain insurance
on behalf of any person who is or was a director, officer, employee or agent of
the Corporation, or is or was serving at the request of the Corporation as a
director, officer, employee or agent of another corporation, partnership, joint
venture, trust or other enterprise, against any liability asserted against him
and incurred by him in any such capacity, or arising out of such person's status
as such, whether or not the Corporation would have the power to indemnify him
against such liability under this Article Eighth.

     4. The indemnification and advancement of expenses provided by, or granted
pursuant to, this Article Eighth shall, unless otherwise provided when
authorized or ratified, continue as to a person who has ceased to be a director
or officer and shall inure to the benefit of the heirs, executors and
administrators of such officer or director. The indemnification and advancement
of expenses that may have been provided to an employee or agent of the
Corporation by action of the board of directors, pursuant to the last sentence
of Paragraph 1 of this Article Eighth, shall, unless otherwise provided when
authorized or ratified, continue as to a person who has ceased to be an employee
or agent of the Corporation and shall inure to the benefit of the heirs,
executors and administrators of such person, after the time such person has
ceased to be an employee or agent of the Corporation, only on such terms and
conditions and to the extent determined by the board of directors in its sole
discretion.

     NINTH. To the fullest extent permitted by the Delaware General Corporation
Law as the same exists or may hereafter be amended, no director of the
Corporation shall be personally liable to the Corporation or its stockholders
for monetary damages for breach of fiduciary duties as a director. Any repeal or
modification of this Article Ninth shall not adversely affect any right or
protection of a director existing at the time of such repeal or modification.

     IN WITNESS WHEREOF, the undersigned has signed this Certificate of
Incorporation on October 15, 2004.


                                               /s/ Jason Hwang
                                               ---------------------------------
                                               Jason Hwang
                                               Sole Incorporator



                            CERTIFICATE OF AMENDMENT

                                     to the

                          CERTIFICATE OF INCORPORATION

                                       of

                           AFFINIA GROUP HOLDINGS INC.


                     Pursuant to Section 242 of the General
                    Corporation Law of the State of Delaware


     The undersigned, being the President of Affinia Group Holdings Inc. (the
"Corporation"), hereby certifies as follows:

     1. The name of the Corporation is Affinia Group Holdings Inc. This name has
never been changed.

     2. The Certificate of Incorporation of the Corporation was filed with the
Delaware Secretary of State on October 18, 2004.

     3. Pursuant to Section 242 of the General Corporation Law of the State of
Delaware, the Certificate of Incorporation of the Corporation is hereby amended
to effect the following changes:

     (a) The name of the Corporation shall be changed to "Affinia Group
Intermediate Holdings Inc."; and

     (b) Paragraph First stating the name of the Corporation shall be amended by
striking the whole text and replacing it with the following:

     "The name of the corporation is Affinia Group Intermediate Holdings Inc.
(the "Corporation")".

     4. This Certificate of Amendment has been duly adopted in accordance with
Sections 228 and 242 of the General Corporation Law of the State of Delaware and
by the written consent of the stockholders of the Corporation.



     IN WITNESS WHEREOF, the undersigned has subscribed this document on the
date set forth below and does hereby affirm, under penalties of perjury, that
the statements contained herein have been examined by him and are true and
correct to the best of his knowledge.


                                                  /s/ Jeffrey Hughes
                                           -------------------------------------
                                           Jeffrey Hughes, Treasurer


Date: October 29, 2004