Affinia S-4 Registration of securities issued in business combination transactions

Exhibit 12.1

RATIO OF EARNINGS TO FIXED CHARGES

The following table shows the consolidated ratio of earnings to fixed charges for Affinia Group Intermediate Holdings Inc. for the periods indicated. You should read this table together with the consolidated financial statements and related notes and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in its S-4, as filed with the Securities and Exchange Commission. The ratio of earnings to fixed charges was computed by dividing earnings from continuing operations before income taxes and fixed charges by fixed charges. Fixed charges consist of interest expense, including the amortization of debt discounts and financing costs, and a portion of rent expense deemed representative of the interest factor.

	Year Ended December 31,										Nine Months Ended September 30,
(Dollars in millions, except per share data)	2008		2009		2010		2011		2012		2012		2013
Statement of income data:
Income from continuing operations before income tax provision, equity in income (loss), net of tax and noncontrolling interest		20		32		58		79		69		59		33
Equity in income (loss), net of tax		—		1		1		—		1		1		(2	)
Income from continuing operations before income tax provision and noncontrolling interest but after equity in income, net of tax		20		33		59		79		70		60		31
Fixed charges:
Interest expense		56		68		65		67		63		48		58
Estimate of interest portion of rental expenses		4		4		3		4		4		3		3
Total fixed charges		60		72		68		71		67		51		61
Income from continuing operations before income tax provision, noncontrolling interest and fixed charges but after equity in income (loss), net of tax		80		105		127		150		137		111		92
Ratio of earnings to fixed charges		1.33		1.46		1.87		2.11		2.04		2.18		1.51