KLS 124-03 Replacement Bump Spool Head Compatible with Kobalt 24-Volt max KST 2224B-03 KST 2024A-03 KST 4024A-03 KST 1124B-03 String Trimmer Weed Wack,Pre-Wound Dual 0.080" 16Ft Line

What It Is

This is a pre-wound bump spool head replacement for Kobalt 24-Volt Max string trimmers. It’s designed for trimming grass and light weeds around edges, fences, and flower beds, using dual 0.080-inch line.

Fitment & Compatibility

Before buying, verify your trimmer model: this fits Kobalt KST 2224B-03, KST 2024A-03, KST 4024A-03, and KST 1124B-03. Measure the spool diameter (approx. 2.5 inches) and check that your trimmer uses a standard bump-feed mechanism. This is an aftermarket part, not OEM Kobalt, so confirm the head attaches via a threaded shaft or spring-loaded button (most 24V models do). If your trimmer has a different line size (e.g., 0.065 or 0.095 inches), this won’t work.

Key Things to Know

• Line quality: The 0.080-inch line is thicker than typical 0.065, offering better durability but may require more effort to bump-feed. Some users report it’s less flexible than OEM line.
• Installation: Tool-free—just snap the spool into the head and thread the line through the eyelets. No disassembly of the trimmer required, but ensure the head clicks securely.
• Common gotcha: The pre-wound spool may have extra line that can jam if not trimmed to 16 feet per side. Cut any excess before use.
• Durability: The plastic housing is decent but may crack if you hit hard surfaces repeatedly. Keep a spare spool on hand.

Should You Buy It

This is a solid budget-friendly option if you own one of the listed Kobalt 24V trimmers and want a quick, pre-wound replacement without cutting your own line. It’s best for light-to-medium trimming jobs. Skip it if you need a heavy-duty head for thick brush or prefer OEM parts for guaranteed fit.