EXHIBIT 15.1

November 2, 2017

Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

Commissioners:

We are aware that our report dated November 2, 2017 on our review of interim financial information of Tenneco, Inc., which appears in this Quarterly Report on Form 10-Q, is incorporated by reference in the Registration Statements on Form S-8 (Nos. 333-17485, 333-41535, 333-33934, 333-101973, 333-113705, 333-142475, 333-159358 and 333-192928) and on Form S-3 (No. 333-200663) of Tenneco, Inc.

Very truly yours,

/s/PricewaterhouseCoopers LLP

Milwaukee, Wisconsin