C26-2 Dual Line Trimmer Head - Fits Stihl FS55, FS55R, FS56, FS56RC - Replaces 4002-710-2169

C26-2 Dual Line Trimmer Head - Fits Stihl FS55, FS55R, FS56, FS56RC - Replaces 4002-710-2169C26 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 40027102169 4002 710

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
• 40027102169
• 4002-710-2137

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.