STIHL FS 110 R Parts Manual

The STIHL FS 110 R is a professional-grade, lightweight brushcutter/string trimmer designed for demanding clearing and trimming work. This parts manual provides detailed diagrams, part numbers, and ordering information for all components of the FS 110 R, including the engine, cutting head, drive shaft, handles, and safety equipment. Use this guide for identification, maintenance, and repair part sourcing.

1. Introduction & Safety 2. Engine Assembly Parts 3. Drive Tube & Shaft Parts 4. Handle & Control Parts 5. Cutting Attachment Parts 6. Fuel System Parts 7. Ignition System Parts 8. Air Filter & Cooling Parts 9. Decompression & Starter Parts 10. Fasteners & Miscellaneous 11. Parts Ordering & Exploded Views

Introduction & Safety

This manual is intended for professional technicians and users familiar with STIHL power tools. Always follow STIHL safety instructions.

Warning SymbolMeaning
⚠️General hazard alert. Read manual before operation.
🔥Fire hazard. Keep away from flammable materials.
⚡Risk of injury from rotating parts. Ensure cutting attachment is stopped.
🧤Wear protective gloves and equipment during parts replacement.

WARNING! Disconnect spark plug boot before performing any maintenance or parts replacement to prevent accidental starting.

Engine Assembly Parts

Cylinder, piston, crankshaft, and crankcase components.

  1. Cylinder: Part # 1130 020 1201
  2. Piston: Part # 1130 030 2001 (with rings and wrist pin)
  3. Crankshaft: Part # 1130 040 0600
  4. Crankcase (Half): Part # 1130 010 4200 (Right), Part # 1130 010 4300 (Left)
  5. Gasket Set: Part # 1130 007 1050 (Includes cylinder base, crankcase seals)

Note: Engine parts are precision-matched. Use only genuine STIHL parts.

Drive Tube & Shaft Parts

Drive shaft, gearhead, and tube assembly components.

  1. Drive Shaft: Part # 4130 710 6600 (Flexible shaft assembly)
  2. Drive Tube: Part # 4130 790 3500 (Metal tube)
  3. Gearhead (Curved): Part # 4130 850 2001 (Includes bearings and seals)
  4. Shaft Coupling (Engine): Part # 1130 145 0400
  5. Anti-Vibration Elements: Part # 4130 790 3610 (Set of 4)

Tip: Inspect drive shaft for kinks or wear during routine maintenance.

Handle & Control Parts

Loop handle, throttle trigger, lockout, and control cables.

Cutting Attachment Parts

Parts for AutoCut C 5-2 head, blades, and blade adapters.

Part DescriptionPart NumberNotes
AutoCut C 5-2 Cutting Head4130 893 8901Complete assembly
Cutting Head Spool4130 893 8905Replacement spool for line
3-Tooth Brush Knife4130 893 8907Metal blade for heavy brush
Blade Adapter (for Circular Saw Blades)4130 893 8910Required for using saw blades
Circular Saw Blade (4-Tooth)4130 893 8920For cutting saplings
Deflector (Cutting Attachment Guard)4130 893 8930Safety guard, must be installed

Fuel System Parts

Fuel tank, cap, filter, lines, and carburetor components.

  1. Fuel Tank: Part # 4130 350 0200
  2. Fuel Cap: Part # 4130 350 0210
  3. Fuel Filter: Part # 4130 350 0220 (In-tank)
  4. Fuel Line: Part # 4130 350 0230 (5mm, per meter)
  5. Carburetor (C1Q-S137): Part # 1130 120 0650
  6. Carburetor Repair Kit: Part # 1130 007 1060 (Includes diaphragms, gaskets)

CAUTION! Use only STIHL MotoMix or 50:1 gasoline/oil mixture. Clean fuel system regularly.

Ignition System Parts

Spark plug, ignition module, and stop switch.

Note: Check spark plug gap (0.5mm / 0.020") regularly.

Air Filter & Cooling Parts

Air filter, cover, and cooling fan components.

  1. Air Filter: Part # 1130 120 0700 (Pre-filter and main filter element)
  2. Air Filter Cover: Part # 1130 120 0710
  3. Cooling Fan (Impeller): Part # 1130 050 0800
  4. Fan Cowling: Part # 1130 050 0810
  5. Spark Arrestor Muffler: Part # 1130 140 1080

Maintenance: Clean air filter after every 10 hours of operation in dusty conditions.

Decompression & Starter Parts

Starter assembly, rope, pulley, and decompression valve.

PartPart Number
Starter Assembly (Complete)1130 080 2000
Starter Rope (1.7m)1130 080 2010
Starter Pulley1130 080 2020
Decompression Valve1130 030 2100
Decompression Valve Seal1130 030 2110
Starter Spring1130 080 2030

Fasteners & Miscellaneous

Screws, nuts, washers, and decals.

Parts Ordering & Exploded Views

Use exploded view diagrams for accurate part identification.

  1. Locate Group Number: Each major assembly has a group number (e.g., 1100 for engine).
  2. Identify Item Number: Find the item number on the diagram corresponding to the needed part.
  3. Reference Part List: Match group and item number to the part number in the list.
  4. Ordering: Contact an authorized STIHL dealer with the part number. Provide serial number of your unit.

Serial Number Location: Stamped on the engine housing near the muffler.

Support: For technical assistance or to find a dealer, visit www.stihlusa.com or call 1-800-467-8445.

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