3x Greenworks Trim Spool Cap Replacement

This pack delivers three identical spool caps engineered for Greenworks string trimmers using 16-foot, 0.065-inch trimmer line. Each unit is injection-moulded from robust ABS material, matching the structural rigidity and thermal stability of original Greenworks components. Dimensionally aligned with cap model 3411546A-6 and spool model 29252, it installs directly onto the fixed spool without modification. Its sealed design prevents grass, dust and moisture from penetrating the head assembly — maintaining consistent line feed and minimising mechanical drag. Compatible across a broad spectrum of Greenworks trimmers including 24V models like 21222A and 21062, 40V units such as ST40B410 and BST4000, and 80V variants like ST40L00 and 21342. No tools, adhesives or adjustments are necessary — just unhook and snap on.