UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 8, 2018

DELPHI TECHNOLOGIES PLC

(Exact name of registrant as specified in its charter)

(Registrant’s Telephone Number, Including Area Code)

011-44-020-305-74300

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ¨.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨.

On August 8, 2018, Delphi Technologies PLC (the “Company”) issued a press release reporting its financial results for the second quarter ended June 30, 2018. A copy of the press release is attached as an exhibit and is incorporated herein by reference. The press release and teleconference visual presentation are available on the Company’s website at delphi.com.

The information in this Item 2.02 and Item 9.01, including Exhibit 99.1 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liabilities of that Section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933 or the Exchange Act.

The Company also announced that its Board of Directors has approved a $100 million share repurchase authorization. The timing and amount of any share repurchases will be based on market conditions, share price and other factors. Repurchases may be made in the open market or in privately negotiated transactions. Repurchases under this authorization will be funded from one or a combination of existing cash balances and future free cash flow. The repurchase authorization has no time limit, does not obligate the Company to make any repurchases and may be suspended for periods or discontinued at any time.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.