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      2. Oregon 55-971 Bump Knob

      Oregon 55-971 Bump Knob

      MPN: OEP55-971

      $9.43

      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. Many parts look similar, so it’s crucial to ensure you’re choosing the right replacement for your original equipment or engine model. Not sure? Use our Parts Lookup Tool to view part diagrams and find the correct replacement.

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

      WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Find Parts With Part Diagrams

      We get it, fixing outdoor power equipment can be hard, but finding the right part is easier with our Part Lookup Tool.

      Go to Parts Lookup Tool

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