Comet USA at (800) 800-4420 from 8 a.m. to 5 p.m. CT Monday through Friday or visit www.efcopower.com and click on Recall Information at the bottom of the home page.
The trimmers are used in residential and professional applications for cutting grass and light brush. The cutting attachments include a trimmer head and metal blade. The trimmers are about 72 inches long and up to 28 inches wide. They are red and gray with either a bike or loop handle configuration. Three models are recalled in two engine sizes measured in cubic centimeters. They are 36cc models 8371 S and 8371 T, and a 40.2cc model 8421 T engine displacement. The brand "efco" and model number are printed on the front of the engine and the brand name also appears on the wand.
Consumers should stop using the recalled trimmers immediately and return them to an authorized efco dealer for a free replacement.
The firm has received 11 reports of muffler failure, including two resulting in singed hair.
Authorized efco dealers and Menard retail stores nationwide and online from June 2009 to July 2014 for about $400.