Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-128342) of Caterpillar Inc. of our report dated June 22, 2023 relating to the financial statements and supplemental schedules of Caterpillar Inc. Tax Deferred Retirement Plan, which appears in this Form 11-K.
/s/ PricewaterhouseCoopers LLP
Chicago, Illinois
June 22, 2023