Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

 

(1)			Registration Statement (Form S-8 No. 333-269621) pertaining to the TransDigm Group Incorporated 2019 Stock Option Plan; and

(2)			Registration Statement (Form S-8 No. 333-200204) pertaining to the TransDigm Group 2014 Stock Option Plan;

 

of our reports dated November 10, 2026, with respect to the consolidated financial statements of TransDigm Group Incorporated and the effectiveness of internal control over financial reporting of TransDigm Group Incorporated included in this Annual Report (Form 10-K) of TransDigm Group Incorporated for the fiscal year ended September 30, 2026.

/s/ Ernst & Young LLP

Cleveland, Ohio

November 10, 2026