This bump head knob secures the line spool and allows line to advance. It will fit in many brands and models of handheld trimmers, gas trimmers, string timmers, and gas string trimmers, including popular MTD trimmers YM70SS and YM20CS. Please use the part and model numbers below to verify that this bump head will work in your MTD trimmer.
- Includes 1 bump head knob
- For many different trimmers
- Genuine MTD replacement lawn part
Fits MTD lawn trimmers:
Fits Ryobi lawn trimmers:
Part Numbers: 791-153066B, 791-153066, 791-147153