SECURITIES AND EXCHANGE COMMISSION

FORM 11-K

(Mark One)

For the year ended December 31, 2004

OR

For the transition period from                                          to                                          

Commission file number 1-12733

Tower Automotive Products Savings Investment Plan

Tower Automotive, Inc.

Tower Automotive Products
Savings Investment Plan

Financial Report

December 31, 2004

Tower Automotive Products Savings Investment Plan

Report of Independent Registered Public Accounting Firm

To the Administrative Committee
Tower Automotive Products
     Savings Investment Plan
Novi, Michigan

We have audited the accompanying statement of net assets available for benefits of the Tower Automotive Savings Investment Plan as of December 31, 2004 and 2003 and the related statement of changes in net assets available for benefits for the years then ended. These financial statements are the responsibility of the Plan’s management. Our responsibility is to express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the net assets available for benefits of the Tower Automotive Savings Investment Plan as of December 31, 2004 and 2003 and the changes in net assets available for benefits for the years then ended, in conformity with accounting principles generally accepted in the United States of America.

Our audits were performed for the purpose of forming an opinion on the financial statements taken as a whole. The supplemental schedule of assets held at end of year is presented for the purpose of additional analysis and is not a required part of the basic financial statements but is supplementary information required by the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. The supplemental schedule is the responsibility of the Plan’s management. The supplemental schedule has been subjected to the auditing procedures applied in the audits of the basic financial statements and, in our opinion, is fairly stated in all material respects in relation to the basic financial statements taken as a whole.

Grand Rapids, Michigan
May 16, 2005

Tower Automotive Products Savings Investment Plan

See Notes to Financial Statements.

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Tower Automotive Products Savings Investment Plan

See Notes to Financial Statements.

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Tower Automotive Products Savings Investment Plan

Note 1 - Description of the Plan

The following description of the Tower Automotive Products Savings Investment Plan (the “Plan”) provides only general information. Participants should refer to the plan agreement for a more complete description of the Plan’s provisions.

General - The Plan is a defined contribution profit-sharing plan covering certain union employees of Tower Automotive Products Company, Inc. (the “Company”). The Plan is sponsored by R.J. Tower Corporation (the “Sponsor”), the parent of the Company. Eligible employees can become participants in the Plan upon completion of the probationary period specified in the collective bargaining agreement. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974 (ERISA).

Contributions - Participants may elect to make contributions to the Plan through payroll deductions of 1 percent to 90 percent of the participant’s compensation, as defined. The Plan also allows participants to transfer funds from other qualified plans into the Plan.

The Company may make a matching contribution based on the participant’s contributions. This matching contribution amount is determined by a collective bargaining agreement with the covered union. Participants must generally be employed as of the last day of the plan year in order to share in Company-matching contributions. A participant whose employment terminated during the plan year after reaching age 65, because of death or disability, or as a direct result of job abolition or permanent reduction in personnel is also eligible to share in matching contributions.

Plan Operations - The Company appointed New York Life Trust Company to act as trustee of the Plan. The Company has also appointed a committee of employees of the Company to act as plan administrator. The trustee is responsible for holding the investment assets of the Plan, executing investment transactions and making distributions to participants. The plan administrator interprets and communicates the provisions of the Plan and ensures that all government and participant reporting requirements are fulfilled, and approves all distributions from the Plan to participants.

Participant Accounts - Individual accounts are maintained for each participant, with benefits limited to the amount contributed to the participant’s account plus or minus any allocation of income, expenses, gains, or losses. Participants direct the investment of their accounts among various investment options offered by the Plan. Allocations to participant accounts are based on compensation or account balances, as specified by the plan agreement. The benefit to which a participant is entitled is the benefit that can be provided from the participant’s vested account.

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Tower Automotive Products Savings Investment Plan

Note 1 - Description of the Plan (Continued)

Vesting - Participants are immediately vested in their voluntary contributions plus actual earnings thereon. Vesting in the Company-matching contribution account is based on years of service as defined in the Plan, as follows:

Loans to Participants - Under certain conditions, a participant may obtain a loan from the Plan. A participant’s loan cannot exceed the lesser of $50,000 or one-half of the participant’s nonforfeitable interest in the Plan. The loan will bear a reasonable interest rate, be adequately secured, and not exceed a period of five years (15 years for purchase of a primary residence, if permitted by collective bargaining agreement). Principal and interest is paid ratably through payroll deductions.

Payment of Benefits - Upon termination of service, a participant may elect to receive either a lump-sum amount equal to the value of the participant’s vested interest in his or her account, or periodic payments, at least annually, of equal amounts of at least $600 over a period not to exceed 15 years. In-service withdrawals are also allowed under the terms of the Plan under certain circumstances.

Forfeited Accounts - Forfeited balances of terminated participants’ nonvested accounts may be used to reduce Company-matching contributions or pay the administrative expenses of the Plan for the plan year in which the forfeiture occurs or the next plan year.

Note 2 - Summary of Accounting Policies

Basis of Accounting - The financial statements of the Plan are prepared using the accrual basis of accounting.

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Tower Automotive Products Savings Investment Plan

Note 2 - Summary of Accounting Policies (Continued)

Assets and Liabilities - Accounting policies relative to the basis of recording assets and liabilities conform to Department of Labor guidelines. The fair value of the pooled separate account is based on the quoted market prices of the underlying assets. Investments in money market and mutual funds and shares of common stock are valued at market value as determined by quoted market prices. Participant loans are valued at their outstanding balance, which approximates fair value.

Additions, Deductions, and Changes in Net Assets - Income and expenses are recorded as earned and incurred. Since assets of the Plan are recorded at fair value, unrealized appreciation or depreciation of plan assets for the year is recorded in the statement of changes in net assets available for benefits. Contributions are recorded on the accrual basis in the plan year to which the contribution applies. Distributions to beneficiaries are recorded when distributed by the Plan.

Administrative Expenses - Certain administrative expenses and withdrawal fees charged by the Plan’s trustee are paid out of plan assets. All other expenses incurred in conjunction with the Plan are paid by the Company.

Use of Estimates - The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of additions and deductions during the reporting period. Actual results could differ from those estimates.

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Tower Automotive Products Savings Investment Plan

Note 3 - Investments

The fair value of significant individual investments at December 31, 2004 and 2003 is as follows:

Note 4 - Related Party Transactions

Certain plan investments are shares of a pooled separate account, mutual funds, and a money market fund managed by New York Life Trust Company. New York Life Trust Company is the trustee, as defined by the Plan; therefore, these transactions qualify as party-in-interest transactions.

Participants may elect to invest in Tower Automotive, Inc. common stock. Tower Automotive, Inc. is the parent of the Sponsor of the Plan. See Note 8.

Note 5 - Plan Termination

Although it has not expressed any intent to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan subject to the provisions of ERISA. In the event of termination, participants will become 100 percent vested and amounts credited to participants’ accounts will be distributed to participants in accordance with the Plan’s provisions.

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Tower Automotive Products Savings Investment Plan

Note 6 - Tax Status

The Plan obtained its latest determination letter dated November 6, 2001, in which the Internal Revenue Service stated that the Plan, as then designed, was in compliance with the applicable requirements of the Internal Revenue Code. The Plan has been amended since receiving the determination letter. However, after consulting with legal counsel, the plan administrator believes that the Plan is currently designed and being operated in compliance with the applicable requirements of the Internal Revenue Code. Therefore, no provision for income taxes has been included in the Plan’s financial statements.

Note 7 - Reconciliation with Form 5500

The following is a reconciliation of net assets available for benefits per the financial statements to Form 5500 at December 31, 2004 and 2003:

The following is a reconciliation of contributions per the financial statements to Form 5500 for the year ended December 31, 2004:

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Tower Automotive Products Savings Investment Plan

Note 7 - Reconciliation with Form 5500 (continued)

The following is a reconciliation of contributions per the financial statements to Form 5500 for the year ended December 31, 2003:

Contributions made after year end were accrued as receivables on the financial statements as of December 31. Contributions are recognized when received on Form 5500.

Note 8 – Subsequent Event

On February 2, 2005, Tower Automotive, Inc. (the Parent of the Sponsor) and its US subsidiaries, including the Company and the Sponsor (collectively “the Debtors”), filed a voluntary petition for relief under Chapter 11 of the United States Bankruptcy Code (the “Bankruptcy Code”) in the United States Bankruptcy Court Southern District of New York (the “Bankruptcy Court”). The Debtors are operating their businesses as debtors-in-possession pursuant to the Bankruptcy Code. An official committee of unsecured creditors has been appointed.

The Debtors have requested that the Bankruptcy Court approve payment of certain pre-petition liabilities including employee wages and benefits. Since the filing, all orders sufficient to enable the Debtors to conduct normal business activities, including the approval of the Debtors’ financing have been entered by the Bankruptcy Court. While the Debtors are subject to Chapter 11, all transactions of the Debtors outside the ordinary course of business will require the prior approval of the Bankruptcy Court.

These financial statements do not include any adjustments or disclosure appropriate for a terminating plan as the Sponsor has no intention nor has taken any actions necessary to terminate the Plan.

Effective February 7, 2005, participants can no longer invest in Tower Automotive, Inc. common stock. Participants have been advised by Tower Automotive, Inc. to redirect all investment amounts in Tower Automotive, Inc. common stock to other investment options.

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Tower Automotive Products Savings Investment Plan

Schedule I

Page 1

SIGNATURES

The Plan. Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.

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