Keep your for Makita trimmer running smoothly with this reliable bump feed trimmer head replacement. Designed specifically for M8 X 1.25 LH arbor trimmers, this 198386-5 model ensures seamless compatibility and consistent performance. The bump feed mechanism allows for quick and easy line advancement - simply tap the head on the ground while the trimmer is running to extend fresh cutting line. This replacement head maintains the original equipment specifications, providing reliable operation for your string trimmer. Perfect for both residential and professional landscaping needs, this durable replacement part helps restore your trimmer's cutting efficiency. Installation is straightforward, getting you back to your yard work quickly. The robust construction stands up to regular use, making it a dependable choice for maintaining your lawn care equipment. COMPATIBILITY: Designed specifically as a direct replacement for Makita string trimmers with XRU11Z XRU12 XRU04Z M8 X 1.25 LH arbor fitting EASYTOUSE: Features an easy-to-use bump and feed mechanism for smooth line advancement during trimming tasks THREAD SPECIFICATION: Comes with M8 X 1.25 left-hand thread pattern ensuring secure attachment to compatible tools INSTALLATION: Simple replacement process requires basic hand tools and connects directly to the trimmer shaft CONSTRUCTION: Durable plastic housing withstands regular impact and debris while maintaining reliable performance