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Butom
FS55R / FS45 Carburetor Tune-Up Kit for STIHL

Trimmers · Carburetors

Butom FS55R / FS45 Carburetor Tune-Up Kit for STIHL

4.7 out of 5 · 1,174 reviews

The bigger STIHL kit: carb plus the full trimmer tune-up bag.

$19.88at last check, Sep 27, 2026

Fits

  • FS55R
  • FS55RC
  • FS45C
  • FS46C
  • FS38
  • KM55R
  • HS45
  • FC55

Replaces

  • C1Q-S97
  • C1Q-S186
  • C1Q-S66
  • C1Q-S143
  • 4140 120 0619

About this part

This is the most-reviewed trimmer kit on our shelf. It fits the same STIHL family as our HS45 carb, but it comes with the full tune-up bag: fuel line, fuel filter, primer bulb, plug, air filter and gaskets.

It covers the FS55R and FS55RC, the easy-start C and CE versions, the KM55 kombi motor and the FC55 edger. On older units, check the model-year note on the page.

  • Carb plus a full trimmer tune-up bag
  • Fits FS38 to FS55 including C and CE versions
  • Fits KM55 kombi and FC55 edger
  • Over a thousand reviews
In the box
  • Carburetor
  • Air filter
  • Fuel line
  • Fuel filter
  • Primer bulb
  • Spark plug
  • Gaskets
Specs
NoteCheck model year on older units
Before you order

Compare the stamp on your old part with the “Replaces” list, and your engine code with “Fits”. If it still isn't clear, send a photo to the counter and we'll check it for you.

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