Canadian Manufacturing

Donaldson to shutter Iowa muffler plant

Emission regulations in the U.S. clobbered the demand for Donaldson's muffler products

November 12, 2014  by Canadian Staff

BLOOMINGTON, Minn.—Filtration manufacturer Donaldson Co, Inc., has announced plans to close a muffler manufacturing plant in Grinnell, Iowa.

The facility, which manufactures mufflers and other exhaust products for off-road equipment, opened in 1952 to produce mufflers and air cleaners.

The plant is a victim of a push for cleaner technology, as changing diesel emission regulations in the U.S. clobbered the demand for its muffler products—customers moved from mufflers to emission control systems.

“The need to align our global manufacturing capacity to remain cost-competitive is the overriding reason for our plan to close the Grinnell facility,” said Bill Cook, CEO of Donaldson.


Approximately 75 employees will be affected by the closure as work is transferred to other Donaldson plants.

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