The Choke Knob for Stihl BR340 and BR340L is an essential genuine replacement part that ensures precise control of your engine choke. Specifically designed for Stihl backpack blowers and sprayers equipped with the 4203-series engine housing, this knob fits seamlessly onto the choke spindle, allowing you to easily adjust the choke position for both cold starts and warm running conditions. Constructed from durable plastic, the Choke Knob is built to withstand the rigors of outdoor use, resisting impacts, fuel splashes, and the demands of repeated operation. Upgrade your Stihl equipment with this reliable choke knob to maintain optimal performance.