Exhibit 99.3

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL DATA OF TENNECO

On April 10, 2018, Tenneco Inc., a Delaware corporation (the “Company” or “Tenneco”), entered into a Membership Interest Purchase Agreement (the “Purchase Agreement”) by and among the Company, Federal-Mogul LLC, a Delaware limited liability company (“Federal-Mogul”), American Entertainment Properties Corp., a Delaware corporation (“AEP”), and Icahn Enterprises L.P., a Delaware limited partnership (“IEP”), regarding the proposed acquisition of Federal-Mogul by the Company (the “Transaction”).

Subject to the terms and conditions of the Purchase Agreement, as consideration for the acquisition of Federal-Mogul, Tenneco will (i) pay to AEP $800 million in cash, subject to increase if Tenneco undertakes a primary offering of common stock, par value $0.01, of Tenneco (“Common Stock”) prior to the closing of the transaction as described in the Purchase Agreement (the “Cash Consideration”), and (ii) issue and deliver 29,444,846 shares of Common Stock (the “Stock Consideration”), subject to reduction if Tenneco undertakes a primary offering of Common Stock prior to the closing of the transaction. The Stock Consideration issuable to AEP will be comprised of: (a) a number of shares of Class A Voting Common Stock, par value $0.01, at the closing of the transaction (“Class A Voting Common Stock”) equal to 9.9% of the aggregate number of shares of Class A Voting Common Stock issued and outstanding, immediately following the closing of the transaction, and (b) the balance in shares of newly created Class B Non-Voting Common Stock, par value $0.01 (“Class B Non-Voting Common Stock”).

The unaudited pro forma condensed combined financial information is presented to illustrate the estimated effects of the transaction and the other activities contemplated by the Purchase Agreement based on the historical financial position and results of operations of Tenneco and Federal-Mogul. The unaudited pro forma condensed combined financial information is presented as follows:

The transaction will be accounted for using the acquisition method of accounting in accordance with Accounting Standards Codification (“ASC”) 805, “Business Combinations,” (“ASC 805”) with Tenneco being designated as the accounting acquirer of Federal-Mogul. The unaudited pro forma condensed combined financial information set forth below primarily gives effect to the following:

The unaudited pro forma condensed combined financial information has been presented for informational purposes only and is not necessarily indicative of what the combined company’s financial position or results of operations actually would have been had the transaction been completed as of the dates indicated. In addition, the unaudited pro forma condensed combined financial information does not purport to project the future financial position or operating results of the combined company. The accompanying unaudited pro forma condensed combined statements of income do not include any pro forma adjustments to reflect expected cost savings or restructuring actions which may be achievable or the impact of any non-recurring activity and one-time transaction related costs.

The unaudited pro forma condensed combined financial information has been prepared using the acquisition method of accounting under existing United States generally accepted accounting principles (“GAAP”), which are subject to change. Tenneco will be deemed the acquirer for accounting purposes and Federal-Mogul will be treated as the acquiree, based on a number of factors considered at the time of preparation of this filing, such as the legal form of the transaction, relative size (assets, revenues, or earnings), terms of the exchange, relative voting rights in the combined company after the business combination, etc. The acquisition accounting is dependent upon certain valuations and other studies that have yet to progress to a stage where there is sufficient information for a definitive measurement. Tenneco intends to complete the valuations and other studies upon completion of the transaction and will finalize the purchase price allocation as soon as practicable within the measurement period, but in no event later than one year following the closing date of the transaction. The assets and liabilities of Federal-Mogul have been measured based on various preliminary estimates using assumptions that Tenneco believes are reasonable, based on information that is currently available. In addition, the transaction has not yet received all necessary approvals from governmental authorities (see Note 1). Under the HSR Act, and other relevant laws and regulations, before the closing of the transaction, there are significant limitations regarding what Tenneco can learn about Federal-Mogul. Accordingly, the pro forma adjustments are preliminary and have been made solely for the purpose of providing pro forma condensed combined financial information prepared in accordance with the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”). Differences between these preliminary estimates and the final acquisition accounting will occur, and these differences could have a material impact on the accompanying unaudited pro forma condensed combined financial information and the combined company’s future results of operations and financial position.

The unaudited pro forma condensed combined financial information has been compiled in a manner consistent with the accounting policies adopted by Tenneco in all material aspects. Upon completion of the transaction, Tenneco will perform a detailed review of Federal-Mogul’s accounting policies. As a result of that review, Tenneco may identify additional differences between the accounting policies of the two companies that, when conformed, could have a material impact on the financial statements of the combined company.

Additionally, certain financial information of Federal-Mogul as presented in its historical financial statements has been reclassified to conform to the historical presentation in Tenneco’s financial statements for purposes of preparation of the unaudited pro forma condensed combined financial information (see Note 9). Transactions between Tenneco and Federal-Mogul during the periods presented in the unaudited pro forma condensed combined financial information were not significant.

The unaudited pro forma condensed combined financial information gives effect to the transaction, as if the transaction had been completed on March 31, 2018, for balance sheet purposes and January 1, 2017, for statement of income purposes. This unaudited pro forma condensed combined financial information was derived from and should be read in conjunction with the separate (i) unaudited financial statements of Tenneco as of and for the three months ended March 31, 2018 and the related notes included in Tenneco’s Quarterly Report on Form 10-Q for the three months ended March 31, 2018 that Tenneco filed with the SEC on May 10, 2018, (ii) audited financial statements of Tenneco as of and for the year ended December 31, 2017 and the related notes included in Tenneco’s Annual Report on Form 10-K for the year ended December 31, 2017 that Tenneco filed with the SEC on February 28, 2018, (iii) Federal-Mogul’s audited financial statements as of and for the year ended December 31, 2017 included in this Current Report on Form 8-K, and (iv) and Federal-Mogul’s unaudited financial statements as of and for the three months ended March 31, 2018 included in this Current Report on Form 8-K.

2

Tenneco Inc.

Unaudited Pro Forma Condensed Combined Balance Sheet

As of March 31, 2018

(in millions)

3

4

Tenneco Inc.

Unaudited Pro Forma Condensed Combined Statement of Income

For the Three Months Ended March 31, 2018

(in millions, except for share and per share data)

5

Tenneco Inc.

Unaudited Pro Forma Condensed Combined Statement of Income

For the Year Ended December 31, 2017

(in millions, except for share and per share data)

6

Note 1. Description of the Transaction

Purchase Agreement

On April 10, 2018, Tenneco entered into the Purchase Agreement by and among Tenneco, Federal-Mogul, AEP and IEP, pursuant to which Tenneco will acquire Federal-Mogul.

Subject to the terms and conditions of the Purchase Agreement, as consideration for the acquisition of Federal-Mogul, Tenneco will (i) pay to AEP $800 million in cash, subject to increase if Tenneco undertakes a primary offering of Common Stock prior to the closing of the transaction as described below, which is referred to as the Cash Consideration, and (ii) issue and deliver 29,444,846 shares of Common Stock, which is referred to as the Stock Consideration, subject to reduction if Tenneco undertakes a primary offering of Common Stock prior to the closing of the transaction. The Stock Consideration issuable to AEP will be comprised of: (a) a number of shares of Class A Voting Common Stock equal to 9.9% of the aggregate number of shares of Class A Voting Common Stock issued and outstanding, immediately following the closing of the transaction, and (b) the balance in shares of newly created Class B Non-Voting Common Stock.

Until the date that is 10 business days prior to the anticipated closing date of the transaction, Tenneco may elect to conduct a primary offering of Common Stock in order to raise funds to increase the Cash Consideration. Tenneco may sell up to 7,315,490 shares of Common Stock in such an offering. Each share sold in such an offering will decrease the number of shares of Common Stock issuable to AEP by one share. The Cash Consideration will be increased by an amount equal to the number of shares sold in such an offering multiplied by $54.6785, with any excess proceeds to be retained by Tenneco. In certain circumstances, AEP may also elect to require Tenneco to conduct such an offering of Common Stock if Tenneco does not do so at least 10 business days prior to the anticipated closing date of the transaction.

The completion of the transaction is subject to certain customary closing conditions, including:

Each party’s obligation to consummate the transaction is also subject to certain additional closing conditions, including (i) the accuracy of the other party’s representations and warranties contained in the Purchase Agreement (subject to certain materiality qualifiers) and (ii) the other party’s compliance in all material respects with its covenants and agreements contained in the Purchase Agreement.

7

Debt Commitment Letters

In connection with the Transaction, the Company has entered into a debt commitment letter, pursuant to which JPMorgan Chase Bank, N.A. and Barclays Bank PLC have committed to provide an aggregate amount of $4.9 billion of debt financing. The debt financing will consist of a $1.7 billion Term Loan A, a $1.7 billion Term Loan B and a $1.5 billion revolving credit facility, which will finance the Cash Consideration portion of the purchase price, replace Tenneco’s existing senior credit facilities and certain senior facilities at Federal-Mogul and repay a portion of existing Tenneco and Federal-Mogul debt. The proceeds will also be used to pay the fees, expenses and costs related to the transaction. Tenneco does not expect to borrow under the revolving credit facility in connection with the transaction. The Term Loan A and revolving credit facility will mature on the fifth anniversary of closing, and the Term Loan B will mature on the seventh anniversary of closing. The new credit facilities will be secured on a senior basis by substantially all assets of Tenneco on a pari passu basis with Federal-Mogul’s existing secured notes, and will be guaranteed by certain material domestic subsidiaries. The commitment to provide financing is subject to specified limited conditions.

Note 2. Basis of Pro Forma Presentation

The accompanying unaudited pro forma condensed combined financial information has been prepared in accordance with Article 11 of Regulation S-X and has been derived from the unaudited financial statements of Tenneco and Federal-Mogul. The financial information has been adjusted in the accompanying unaudited pro forma condensed combined financial information to give effect to pro forma events that are (1) directly attributable to the transaction, (2) factually supportable and (3) with respect to the unaudited pro forma condensed combined statement of income, expected to have a continuing impact on the combined results of operations of Tenneco.

The unaudited pro forma condensed combined financial information was prepared using the acquisition method of accounting in accordance with ASC 805, which requires, among other things, that assets acquired and liabilities assumed in a business combination be recognized at their fair values as of the acquisition date. The acquisition method of accounting, in accordance with ASC 805, uses the fair value concepts defined in ASC 820, “Fair Value Measurement” (“ASC 820”).

ASC 820 defines fair value, establishes the framework for measuring fair value for any asset acquired or liability assumed under GAAP, expands disclosures about fair value measurements, and specifies a hierarchy of valuation techniques based on the nature of the inputs used to develop the fair value measurements. Fair value is defined in ASC 820 as “the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.” This is an exit price concept for the valuation of an asset or liability. Market participants are assumed to be buyers or sellers in the most advantageous market for the asset or liability. Fair value measurement for an asset assumes the highest and best use by these market participants, and as a result, assets may be required to be recorded which are not intended to be used or sold. Additionally, the fair value may not reflect management’s intended use for those assets.

Fair value measurements can be highly subjective and it is possible the application of reasonable judgment could develop different assumptions resulting in a range of alternative estimates using the same facts and circumstances.

Fair value estimates were determined based on preliminary discussions between Tenneco and Federal-Mogul management, due diligence efforts, and information available in public filings. The allocation of the aggregate transaction consideration used in the preliminary unaudited pro forma condensed combined financial information is based on preliminary estimates. The estimates and assumptions are subject to change as of the effective time of the closing of the transaction. The final determination of the allocation of the aggregate transaction consideration will be based on the actual tangible and intangible assets and the liabilities of Federal-Mogul at the effective time of the transaction (see Note 5).

Federal-Mogul’s assets acquired and liabilities assumed will be recorded at their fair value at the transaction date. ASC 805 establishes that the consideration transferred shall be measured at the closing date of the transaction at the then-current market price. This particular requirement will likely result in a per share equity component that is different from the amount assumed in this unaudited pro forma condensed combined financial information. The purchase consideration for Tenneco’s acquisition of Federal-Mogul under the acquisition method will be based on the share price of Tenneco common stock on the closing date of the transaction multiplied by the Stock Consideration. The preliminary purchase price allocation assumes a Common Stock price of $46.57, the price at market close on June 19, 2018. Under the Purchase Agreement, until the date that is 10 business days prior to the anticipated closing date of the transaction, Tenneco may elect to conduct a primary offering of Common Stock in order to raise funds to increase the Cash Consideration by up to $400 million and decrease the Stock Consideration by selling up to 7,315,490 shares of Common Stock.

8

The unaudited pro forma condensed combined financial information is presented solely for informational purposes and is not necessarily indicative of the combined results of operations or financial position that might have been achieved for the periods or dates indicated, nor is it necessarily indicative of the future results of the combined company. The unaudited pro forma condensed combined financial information has not been adjusted to give effect to certain expected financial benefits of the transaction, such as tax savings, cost synergies or revenue synergies, or the anticipated costs to achieve these benefits, including the cost of integration activities. Also, the unaudited pro forma condensed combined financial information does not reflect possible adjustments related to restructuring or integration activities that have yet to be determined or transaction or other costs following the combination that are not expected to have a continuing impact on the business of the combined company. Further, one-time transaction-related expenses anticipated to be incurred prior to, or concurrent with, the closing of the transaction are not included in the unaudited pro forma condensed combined statement of income. For the three months ended March 31, 2018, such transaction expenses were $13 million. For the year ended December 31, 2017, such transaction expenses were determined not to be significant. Management has identified an additional $30 million of transaction-related expenses, not yet incurred, primarily related to deal advisory fees. Transaction-related expenses will be further refined as more information becomes available.

Certain amounts from the historical financial statements of Federal-Mogul were reclassified to conform their presentation to that of Tenneco (see Note 9).

The statement of income of Tenneco for the year ended December 31, 2017 has been modified to reflect the retrospective adoption of ASU 2017-07, Compensation—Retirement Benefits. Accordingly, $3 million and $12 million of expense has been reclassified out of “Cost of sales” and “Selling, general, and administrative” costs, respectively, to “Other expense”.

Note 3: Accounting Policies

Tenneco has completed a preliminary review of significant accounting policies for purposes of the unaudited pro forma condensed combined financial information. No material differences in accounting policies were identified. Review of such accounting policies will continue and policy differences may be identified at a later date and may be deemed material at that time.

Note 4: Estimated Transaction Consideration

The estimated consideration is calculated as follows (in millions, except for share data):

9

The estimate of consideration expected to be transferred and reflected in this unaudited pro forma condensed combined financial information does not purport to represent what the actual consideration transferred will be when the transaction is completed. For purposes of these unaudited pro forma condensed combined financial statements, the market price of Tenneco common stock based on the June 19, 2018 market close of $46.57 was used to calculate the estimate of consideration expected to be transferred. However, the fair value of equity securities issued as the consideration transferred will be measured using the market price of Tenneco common stock on the closing date. Under the Purchase Agreement, until the date that is 10 business days prior to the anticipated closing date of the transaction, Tenneco may elect to conduct a primary offering of Common Stock in order to raise funds to increase the Cash Consideration by up to $400 million and decrease the Stock Consideration by selling up to 7,315,490 shares of Common Stock.

A 5% increase or decrease in Tenneco’s share price would result in a $69 million increase or decrease in the total consideration, which would be reflected in these unaudited pro forma condensed combined financial statements as an increase or decrease to goodwill. As the Senior Secured Debt of Federal-Mogul to be assumed by Tenneco in the transaction is denominated in Euro, a significant movement in the foreign currency exchange rate could also impact the purchase price. The actual purchase price will fluctuate until the closing of the transaction.

Note 5: Purchase Accounting Adjustments

The following is a preliminary estimate of the assets to be acquired and the liabilities to be assumed by Tenneco in the transaction, reconciled to estimated transaction consideration (in millions):

Note 6: Balance Sheet Adjustments

The following represents an explanation of the various adjustments to the unaudited pro forma condensed combined balance sheet.

A – Cash, cash equivalents and restricted cash (in millions):

10

B—Inventories

Represents an adjustment of $186 million to increase the carrying value of Federal-Mogul’s inventories, for the preliminary estimated fair value, which is based on the expected selling price of inventory to customers and adjusted for related costs of disposal and a reasonable profit allowance for the post-acquisition selling effort. The fair value adjustment to inventories is expected to be recognized in the combined company’s statement of income within twelve months following the consummation of the transaction.

C—Property, plant and equipment

Represents the adjustment in carrying value of Federal-Mogul’s property, plant and equipment from its recorded net book value to its preliminary estimated fair value. The estimated fair value is expected to be depreciated over the estimated useful lives, generally on a straight-line basis. The preliminary amounts assigned to property, plant and equipment are as follows (in millions):

The final determination of fair value of property, plant and equipment, as well as estimated useful lives, remains subject to change. The finalization may have a material impact on the valuation of property, plant and equipment and the purchase price allocation, which is expected to be finalized subsequent to the closing of the transaction.

The preliminary estimate of fair value of Federal-Mogul’s property, plant and equipment was determined using a depreciated replacement cost method, which is a form of the “cost approach,” using currently available information, such as Federal-Mogul’s balance sheet and fixed asset registers. This method applies asset class specific inflationary / deflationary factors to the original capitalized cost of the assets being valued. The inflationary / deflationary factors used were derived from published sources. The estimated cost was then adjusted for physical depreciation calculated on a straight-line basis, considering the economic useful life and physical age of the assets being valued, for all asset classes.

The estimated useful lives used to calculate the physical depreciation reflect the weighted average remaining utility of each asset group based upon the relationship of preliminary value to replacement cost while considering each asset group’s estimated total economic life. The estimate of fair value and estimated useful lives is preliminary and subject to change once Tenneco has sufficient information as to the specific types, nature, age, condition, and location of Federal-Mogul’s property, plant and equipment.

11

D—Goodwill

Goodwill represents the excess of the purchase price over the preliminary fair value of the underlying net tangible and identifiable intangible assets net of liabilities. Goodwill acquired in the transaction is estimated to be $431 million and Federal-Mogul’s historical goodwill of $689 million is eliminated, for a net adjustment of $258 million. The estimated goodwill to be recognized is attributable primarily to expected synergies, expanded market opportunities, and other benefits that Tenneco believes will result from combining its operations with the operations of Federal-Mogul. The goodwill created in the transaction is not expected to be deductible for tax purposes and is subject to material revision as the purchase price allocation is completed (see Note 5).

E—Intangible assets

Represents adjustments to record the preliminary estimated fair value of intangibles of approximately $881 million, which is an increase of $377 million over Federal-Mogul’s historical book value of intangibles of $504 million prior to the transaction.

Identified intangibles assets expected to be acquired consist of the following (in millions):

The fair value estimate for all identifiable intangible assets is preliminary and is based on assumptions that market participants would use in pricing an asset, based on the most advantageous market for the asset (i.e., its highest and best use). This preliminary fair value estimate could include assets that are not intended to be used, may be sold, or are intended to be used in a manner other than their best use. The final determination of fair value of intangible assets, as well as estimated useful lives, remains subject to change. The finalization may have a material impact on the valuation of intangible assets and the purchase price allocation, which is expected to be finalized subsequent to the transaction.

F—Short-term debt (including current maturities of long-term debt)

Represents the increase in Tenneco’s outstanding short-term debt of $102 million for the issuance of debt in connection with the transaction (see Note 7C for interest expense).

G—Long-term debt (in millions):

12

H—Total shareholders’ equity

Represents the elimination of Federal-Mogul capital, accumulated deficit, and accumulated other comprehensive loss, as well as the following adjustments to reflect the capital structure of the combined company (in millions):

I—Income Taxes

For U.S. federal tax purposes, the transaction is structured to be an asset acquisition for the U.S. assets of Federal-Mogul and, principally, an acquisition of the stock of Federal-Mogul’s foreign operations. The valuation relating to the purchase accounting is preliminary, however, and therefore the impact on the deferred tax assets and liabilities cannot be reasonably estimated at this time since the purchase price allocation has not been made on a jurisdictional basis and therefore not included in this pro forma condensed combined balance sheet. Adjustments to establish or remove deferred tax assets and liabilities as well as the recognition of additional deferred tax assets and liabilities upon detailed analysis of the acquired assets and assumed liabilities may occur in conjunction with the finalization of the purchase accounting, and these items could be material.

13

Note 7: Statement of Income Adjustments

The following represents an explanation of the various adjustments to the unaudited pro forma condensed combined statement of income.

A—Selling, general, and administrative

Represents the elimination of $13 million of non-recurring transaction-related costs directly attributable to the acquisition of Federal-Mogul.

B—Depreciation and amortization of other intangibles

Represents estimated depreciation and amortization expense related to the pro forma adjustment to property, plant, and equipment (see Note 6C) and intangible assets (see Note 6E). Pro forma depreciation and amortization has been estimated on a preliminary basis as follows (in millions):

The estimated depreciation expense was calculated using weighted average useful lives of 29 years for building and building improvements, 8 years for machinery and equipment, and 5 years for capitalized software.

For each $100 million increase or decrease in the fair value of building and building improvements, the annual depreciation expense would increase or decrease by $4 million. If the useful life for building and building improvements were to increase or decrease by 1 year, the annual depreciation expense will decrease or increase by less than $1 million.

For each $100 million increase or decrease in the fair value of machinery and equipment, the annual depreciation expense would increase or decrease by $12 million. If the useful life for machinery and equipment increases or decreases by 1 year, the annual depreciation expense will decrease or increase by $26 million.

For each $10 million increase or decrease in the fair value of capitalized software, the annual depreciation expense would increase or decrease by $2 million. If the useful life for capitalized software increases or decreases by 1 year, the annual depreciation expense will decrease or increase by $2 million.

The estimated amortization expense was calculated using weighted average useful lives of 7 years for technology, and 15 years for customer relationships.

For each $100 million increase or decrease in the fair value of technology, the annual amortization expense would increase or decrease by $15 million. If the useful life for technology increases or decreases by 1 year, the annual amortization expense will decrease or increase by $3 million.

For each $100 million increase or decrease in the fair value of customer relationships, the amortization expense would increase or decrease by $5 million. If the useful life for customer relationships increases or decreases by 1 year, the annual amortization expense will decrease or increase by $3 million.

14

C—Interest expense

The increase in interest expense is comprised of the following (in millions):

The interest rates used for the new Tenneco debt for purposes of the pro forma condensed combined financial information are based on the rates reflected in the debt commitment letter related to the debt financing for the transaction (See Note 1). The interest rates for the Term Loan A and Term Loan B are assumed to be 3.46% and 4.46%, respectively, for the three months ended March 31, 2018, and 2.89% and 3.89%, respectively, for the year ended December 31, 2017. A 1/8 percent increase or decrease in the interest rates assumed above would result in an aggregate increase or decrease to interest expense of $1 million and $4 million for the three months ended March 31, 2018 and for the year ended December 31, 2017, respectively.

D—Income taxes

Represents the income tax effect for unaudited pro forma condensed combined statement of income adjustments related to the transaction using statutory tax rates in each jurisdiction, less any applicable valuation allowances for the three months ended March 31, 2018 and the year ended December 31, 2017. Because the adjustments contained in this unaudited pro forma condensed combined financial information are based on estimates, the effective tax rate will likely vary from the effective rate in periods subsequent to the transaction. Additionally, certain adjustments reflect transactions that will occur within legal entities located in jurisdictions which are subject to valuation allowances and a tax benefit is not expected to be realized on a more likely than not basis.

Represents the tax impact of the pro forma adjustments on the income statement of $6 million and $20 million at the estimated combined statutory rate of 24% for the three months ended March, 31, 2018 and 35% for the year ended December 31, 2017, respectively. The effective tax rate of the combined company could be significantly different (either higher or lower) depending on post-transaction activities and impact due to U.S. tax reform.

15

Note 8: Earnings per Share

The unaudited pro forma average number of basic weighted average shares outstanding is calculated as follows:

The unaudited pro forma average number of diluted weighted average shares outstanding is calculated by adding the effect of dilutive securities to the unaudited pro forma average number of basic weighted average shares outstanding. The dilutive effects of these share-based awards were computed using the treasury stock method.

Note 9: Reclassifications

Tenneco has completed a preliminary review of the financial statement presentation of Federal-Mogul for purposes of the unaudited pro forma condensed combined financial information. During this review, the following financial statement reclassifications were performed in order to align the presentation of Federal-Mogul’s financial information with that of Tenneco:

16

Presentation reclassification notes:

17

Presentation reclassification notes:

18

Presentation reclassification notes:

19