Oregon Spool Bump Knob, Trimmer Head

This is a replacement spool bump knob to fit the Oregon® 55-993 trimmer head. Oregon replacement parts are built to meet or exceed OEM standards.

• Replacement spool bump feed knob for 55-993 trimmer head
• Fit for semi-automatic bump and feed

Replaces OEM Parts

• Rotary - 14500
• Stens - 385-563
• Stihl - 4002-713-3017A

Oregon part number: 55-971