Exhibit 12.1

Navistar International Corporation

Computation of Ratio of Earnings to Fixed Charges

The computation of Ratio of Earnings to Fixed Charges as shown on this Exhibit 12 is provided pursuant to Items 503(d) and 601(12) of Regulation S-K. The Ratio of Earnings to Fixed Charges is not calculated consistently with the fixed charge coverage ratios that may be required under certain covenants of the Company’s debt agreements.

	Three Months Ended January 31,						Fiscal Year Ended October 31,
	2013			2012			2012			2011			2010			2009			2008
(in millions)
Income (loss) before income tax (expense) benefit(A)	$	(83	)	($	200	)	$	(1,082	)	$	506		$	388		$	395		$	158
Less: Net income attributable to non-controlling interests		(15	)		(13	)		(48	)		(55	)		(44	)		(25	)		—
Dividends from non-consolidated affiliates		2			—			7			4			5			59			85
Interest expense(B)		58			52			213			203			215			235			456
Debt amortization expense		16			9			46			44			38			16			13
Interest portion of rent expense(C)		5			5			21			18			19			18			17
Total earnings (loss)	$	(17	)	$	(147	)	$	(843	)	$	720		$	621		$	698		$	729
Capitalized interest	$	2		$	2		$	9		$	18		$	4		$	1		$	5
Interest expense(B)		63			57			234			221			234			253			473
Debt amortization expense		16			9			46			44			38			16			13
Total fixed charges	$	81		$	68		$	289		$	283		$	276		$	270		$	491
Ratio of earnings to fixed charges		—						—			2.54			2.25			2.59			1.48
Earnings shortfall	$	(98	)	$	(215	)	$	(1,132	)		—			—			—			—

(A) Represents income (loss) from continuing operations excluding equity in income (loss) of non-consolidated affiliates.

(B) Excludes interest expense on income tax contingencies.

(C) Represents an estimated amount of rental expense (33%) that is deemed to be representative of the interest factor.