2 PK Trigger Interlock Fits Stihl 4238-182-0800 TS410 TS420 TS480i TS550i by Stens $10.81 Sold out 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out PRODUCT DESCRIPTION 2 PK Trigger Interlock Fits Stihl 4238-182-0800 TS410 TS420 TS480i TS550i