Which ECHO® and other manufacturers’ products are compatible with the Speed Feed® 400?

Modified on Wed, Sep 24, 2025 at 1:50 PM

The ECHO® Speed Feed® 400 is available under two separate part numbers. 

  • Part #99944200907 - Compatible with all ECHO® trimmer models, including straight and curved shaft, as well as select models from other manufacturers. Other manufacturers models listed below.
  • Part #99944200908 - Compatible with all ECHO® curved shaft models only. 


Other Manufacturers: The attachment will provide manufacturers and models are confirmed to be compatible with the Speed Feed® 400. Since manufacturers frequently introduce new products, ECHO® cannot guarantee that the compatibility chart included with the trimmer head packaging is always current. If a manufacturer and/or model is not listed, it is recommended the customer contact the manufacturer with the bushing/adapter specifications to confirm. 

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