BESTA510 (Type 1) Black and Decker Trimmer

This is an OEM replacement cover for a string trimmer or edger. The cover holds the spool and line securely inside the spool housing. If this part has cracked or damaged, it will need to be replaced. ...

This is an OEM spring located between the spool and spool cover of your trimmer. It is designed to hold the spool in position. This spring can lose tension over time and may cause the trimmer head to ...