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Donaldson Announces New Line Of Retrofit Catalytic Converter Mufflers For Heavy-Duty Diesel Engines

08 October, 2001
Padilla Speer Beardsley Inc.
224 Franklin Avenue West
Minne Minneapolis, Minnesota 55404
Donaldson Company, Inc.
P.O. Box 1299
Minneapolis, Minnesota 55440
Patty Hoffmam
(612) 872-3781
Richard Sheffer
(800) 374-1374


MINNEAPOLIS, October 8 — In the latest example of their commitment to reducing heavy-duty diesel engine emissions, Donaldson Company, Inc. (NYSE: DCI) today announced the first installation of retrofit Catalytic Converter Mufflers (CCM) in conjunction with NESCAUM (Northeast States for Coordinated Air Use Management). The Donaldson® CCMs were developed in partnership with Mack Trucks, Inc. and were installed on Mack® MR and LE model vehicles owned by Waste Management, Inc. (NYSE: WMI) at their Woburn, Mass., location.

Donaldson integrated a Mack-specified diesel oxidation catalyst (DOC) into a 10" diameter converter muffler, making the CCM a direct replacement for the standard heavy-duty exhaust muffler. Donaldson's patented CCM designs will become part of a new line of retrofit DOC products being developed and marketed independently by Donaldson for emerging retrofit markets.

Donaldson's strengths as an exhaust systems supplier helped Mack define and procure complete retrofit kits, including new mounting bands, heat shields, clamps, tubing and flex, to facilitate installation. The ability to supply complete kits is expected to provide Donaldson with an advantage over other retrofit suppliers.

Following the successful installation, Donaldson received a commitment from Mack to build several hundred more retrofit units for installation on other Mack vehicles in Waste Management's fleet throughout the New England area.

Donaldson Company, Inc., headquartered in Minneapolis, Minnesota, is a leading worldwide provider of filtration systems and replacement parts. Founded in 1915, Donaldson is a technology-driven company committed to satisfying customer needs for filtration solutions through innovative research and development. Donaldson serves customers in the industrial and engine markets including dust collection, power generation, specialty filtration, off-road equipment, trucks, and automotive. More than 8,200 employees contribute to the company's success at roughly 40 manufacturing locations around the world. In fiscal year 2001, Donaldson reported record sales of more than $1 billion and achieved its twelfth consecutive year of double-digit earnings growth. Donaldson is a member of the S&P MidCap 400 Index and Donaldson shares are traded on the New York Stock Exchange under the symbol DCI. Additional company information is available at

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Mack is a registered trademark of Mack Trucks, Inc.

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