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4180-120-0615 FS91R Trimmer Carburetor Kit

Key Features

Complete replacement kit includes carburetor, air filter, fuel filter, fuel lines, grommet, primer bulb, and spark plug.
Designed as a direct-fit replacement for the original equipment manufacturer part.
Pre-calibrated from the factory; minor adjustments may be necessary for optimal performance based on altitude and fuel mixture.

Replaces / Cross-Reference Part Numbers

4180-120-0615
4180-120-0618
4180-120-0611
C1Q-S174
41801200615

Compatibility & Fitment

STIHL Trimmers / Brushcutters: FS89, FS89R, FS91, FS91R, FS111, FS111R, FS111RX
STIHL Edgers: FC91, FC96, FC111
STIHL Kombi Engines: KM91, KM91R, KM111, KM111R
STIHL Pole Pruners: HT102, HT103

When to Replace

Engine fails to start or experiences difficult starting.
Engine stalls frequently, idles roughly, or will not hold an idle.
Noticeable loss of power or poor acceleration during operation.
Fuel leaks

Stihl Brand

4180-120-0615 FS91R Trimmer Carburetor Kit - Fits STIHL FS91R FS91 FC91 FS111 Trimmer