Bolens Trimmer BL100 Bump Head Knob
Use this bump head knob assembly on various Bolens trimmers, including BL100 models. Bump head knob secures the line spool and allows line to unroll. Fits many brands and models of gas trimmers, handheld trimmers, and string trimmers. Genuine MTD replacement part for Bolens trimmers. Please use the part and model numbers below to confirm that this bump head will fit in your trimmer.
Part Numbers: 791-153066B, 791-153066, 791-147153