C26-2 Dual Line Trimmer Head 4002 710

Key Features

• Dual line head designed for efficient mowing and thinning.
• Tap-to-advance mechanism automatically feeds line during operation.
• Simplified reloading system for quick line replacement.
• Accepts 0.080 in (2.0 mm), 0.095 in (2.4 mm), or 0.105 in (2.7 mm) diameter trimmer line.
• Mounts with a 10mm x 1.0 left-hand female thread.

Replaces / Cross-Reference Part Numbers

• 4002 710 2169
• C26-2

Compatibility & Fitment

• Brand: STIHL
• Fits Models: FS55, FS55R, FS56, FS56RC, FS70, FS70R, FS80, FS85, FS87, FS89, FS90, FS90R, FS91, FS91R, FS94, FS94R, FS110, FS110R, FS111, FS111R, FS120, FS120R, FS130, FS130R, FS131, FS131R, FS240, FS240R, FS250, FS250R, FS260R, FS460R
• Also fits KombiSystem Models: FS-KM
• Also fits Cordless Models: FSA90, FSA90R, FSA130, FSA130R
• Also fits Backpack Brushcutter Models: FR131T, FR410, FR460

When to Replace

• Visible cracks, breaks, or significant wear on the head housing.
• Internal mechanism fails to feed line when the head is tapped.
• The bump knob is worn through and no longer functions.
• Line guide eyelets are worn out, causing the line to fray or break frequently.
• Excessive or unusual vibration during use.

Installation Tips

• Ensure the engine is off and disconnect the spark plug wire before servicing.
• To remove the old head, insert a locking pin or small screwdriver into the designated hole on the gear head to prevent the shaft from turning.
• Unscrew the old trimmer head by turning it clockwise (it has a left-hand thread).
• Clean any dirt or debris from the trimmer's threaded shaft.
• Screw the new head on counter-clockwise until it is firmly hand-tight.