Tenneco (TEN) 10-Q 2018 Q3 Quarterly report

EXHIBIT 15.1

November 7, 2018

Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

Commissioners:

We are aware that our report dated November 7, 2018 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, 333-192928, and 333-227648) and the Registration Statements on Form S-3 (No. 333-224786 and 333-227646) of Tenneco Inc.

Very truly yours,

/s/PricewaterhouseCoopers LLP

Milwaukee, Wisconsin