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.

	Nine Months Ended July 31,						Fiscal Year Ended October 31,
	2012			2011			2011			2010			2009			2008		2007
(in millions)
Income (loss) before income tax (expense) benefit(A)	$	(595	)	$	100		$	388		$	340		$	313		$	120	$	(147	)
Less: Net income attributable to non-controlling interests		(35	)		(35	)		(55	)		(44	)		(25	)		—		—
Dividends from non-consolidated affiliates		5			2			4			5			59			85		111
Interest expense (B)		151			154			203			215			235			456		493
Debt amortization expense		31			33			44			38			16			13		9
Interest portion of rent expense©		14			13			18			19			18			17		17
Total earnings		(429	)		267			602			573			616			691		483
Capitalized interest		8			13			18			4			1			5		7
Interest expense(B)		165			167			221			234			253			473		510
Debt amortization expense		31			33			44			38			16			13		9
Total fixed charges		204			213			283			276			270			491		526
Ratio of earnings to fixed charges		—			1.25			2.13			2.08			2.28			1.41		—
Earnings shortfall		(633	)		—			—			—			—			—		(43	)

(A) Excludes equity in (loss) income 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.