UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

(Amendment No. 1)

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 12, 2016 (September 5, 2016)

NAVISTAR INTERNATIONAL CORPORATION

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code (331) 332-5000

(Former name or former address, if changed since last report.)

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:

On September 6, 2016, Navistar International Corporation (the “Company”), filed a Current Report on Form 8-K (the “Initial Form 8-K”) describing the Framework Agreement Concerning Technology Licensing and Supply (the “License and Supply Framework Agreement”) and the Procurement JV Framework Agreement (the “Procurement JV Framework Agreement”) between Navistar, Inc. and Volkswagen Truck & Bus GmbH (“VW T&B”). The Company hereby amends its Initial Form 8-K in this Current Report on Form 8-K/A in order to include the License and Supply Framework Agreement and the Procurement JV Framework Agreement, which are filed, respectively, as Exhibit 10.4 and Exhibit 10.5 hereto and are incorporated herein by reference. Portions of Exhibit 10.4 and Exhibit 10.5 have been omitted pursuant to a FOIA Confidential Treatment Request to the Securities and Exchange Commission pursuant to Rule 24b-2 under the Securities Exchange Act of 1934, as amended. Except for the filing of these Exhibits, no other amendments to the Initial Form 8-K are made by this Form 8-K/A.

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS

(d) Exhibits

SIGNATURE

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 hereunto duly authorized.

Dated: September 12, 2016

EXHIBIT INDEX