wprt-20250930

wprt-20250930_d2

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of November 2025

Commission File Number: 001-34152

WESTPORT FUEL SYSTEMS INC.

(Translation of registrant's name into English)

1691 West 75th Avenue, Vancouver, British Columbia, Canada, V6P 6P2

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

S Form 20-F £ Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

INCORPORATION BY REFERENCE

The information contained in this Form 6-K, including Exhibits 99.1 and 99.2, is hereby incorporated by reference into the Company's Registration Statement on Form F-3 (File No.333-289669) and the registration statement on Form S-8, as amended (Registration No.333-248912).

EXHIBIT INDEX


Exhibit						Description
99.1						MANAGEMENT'S DISCUSSION AND ANALYSIS FOR THE PERIOD END SEPTEMBER 30, 2025
99.2						CONDENSED CONSOLIDATED FINANCIAL STATEMENTS FOR THE PERIOD ENDED SEPTEMBER 30, 2025
101						INS XBRL Instance Document
101						SCH Inline XBRL Taxonomy Extension Schema Document
101						SCH Inline XBRL Taxonomy Extension Calculation Linkbase Document
101						DEF Inline XBRL Taxonomy Extension Definition Linkbase Document
101						LAB Inline XBRL Taxonomy Extension Label Linkbase Document
101						PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document
104						Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

SIGNATURES

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


			WESTPORT FUEL SYSTEMS INC.

			By:			/s/ Elizabeth Owens
			Name:			Elizabeth Owens
			Title:			Chief Financial Officer

Date: November 10, 2025

SEC Form 6-K filed by Westport Fuel Systems Inc