Exhibit 4.1

AMENDED AND RESTATED

CERTIFICATE OF INCORPORATION

OF

TENNECO INC.

November 17, 2022

FIRST: The name of this corporation (the “Corporation”) shall be Tenneco Inc.

SECOND: Its registered office in the State of Delaware is to be located at 3411 Silverside Road, Tatnall Building Suite 104, Wilmington, New Castle County, Delaware 19801, United States, and the name of its registered agent at such address is Corporate Creations Network Inc.

THIRD: The purpose or purposes of the Corporation shall be to engage in any lawful act or activity for which corporations may be organized under the General Corporation Law of the State of Delaware (the “DGCL”).

FOURTH: The total number of shares of stock which this Corporation is authorized to issue is 1,000. All such shares are of one class and are shares of Common Stock with the par value of $0.01 per share.

FIFTH: The Board of Directors shall have the power to adopt, amend or repeal the bylaws.

SIXTH: A director of the Corporation shall not be liable to the Corporation or its stockholders for monetary damages for breach of fiduciary duty as a director, except to the extent such exemption from liability or limitation thereof is not permitted under the DGCL as the same exists or may hereafter be amended. Any amendment, modification or repeal of the foregoing sentence shall not adversely affect any right or protection of a director of the Corporation hereunder in respect of any act or omission occurring prior to the time of such amendment, modification or repeal.

SEVENTH: To the fullest extent permitted by applicable law, the Corporation is authorized to provide indemnification of (and advancement of expenses to) the directors, officers, employees and agents of the Corporation through bylaw provisions, agreements with such directors, officers, employees and agents, vote of stockholders or disinterested directors or otherwise, in excess of the indemnification and advancement otherwise permitted by Section 145 of the DGCL.

Any amendment, repeal or modification of the foregoing provisions of this Article Seventh shall not adversely affect any right or protection of a director, officer, employee or agent existing at the time of any acts or omissions of such director, officer, employee or agent occurring prior to such amendment, repeal or modification.