UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 8-K

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CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d)

OF THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (date of earliest event reported): November 6, 2025

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Power Solutions International, Inc.

(Exact name of registrant as specified in its charter)

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Delaware (State or other jurisdiction of incorporation)	001-35944 (Commission File Number)	33-0963637 (I.R.S. Employer Identification No.)
201 Mittel Drive Wood Dale, Illinois 60191
(Address of principal executive offices and zip code)
Registrant's telephone number, including area code: (630) 350-9400

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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):


☐			Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐			Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐			Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐			Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading Symbol(s)

Name of each exchange

on which registered

Common Stock, par value $0.001 per share

PSIX

Nasdaq Stock Market

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. ☐

Item 7.01 - Regulation FD Disclosure

On November 6, 2025, Power Solutions International, Inc. (the “Company”) issued a press release announcing third quarter 2025 financial results and containing its outlook for 2025.

In accordance with General Instruction B.2. of Form 8-K, the information contained under Item 2.02 in this Current Report on Form 8-K, including Exhibit 99.1, is being furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, and will not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such filing.

Item 9.01 - Financial Statements and Exhibits.

(d): The following exhibits are being filed herewith:


Exhibit No.						Description
99.1						Press Release of Power Solutions International, Inc., dated November 6, 2025
104						Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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 on this 6th day of November, 2025.


POWER SOLUTIONS INTERNATIONAL, INC.

By:			/s/ Xun Li
			Xun Li
			Chief Financial Officer

POWER SOLUTIONS INTERNATIONAL, INC. 8-K