FS100 Carburetor For Stihl Trimmers Rainier Parts C1Q-S173 Replacement Kit With Gasket Air Filter Spark Plug

This FS100 carburetor is a direct-fit replacement designed for STIHL 4-mix trimmer engines, including the FS100 family and KM/HT series. Built for reliable starts and steady throttle response, it’s ideal for both professional groundskeepers and DIY homeowners who perform regular trimmer maintenance.

• Compatibility: Fits STIHL trimmer models across FS100/FS100R/FS100RX, FS110/FS110R/FS110X/FS110RX, FS87/FS87R, FS90/FS90R, HL100/HL100K, FS90K, HL90/HL95/HL95K, HT100/HT101, KM100/KM100R, KM110R/KM110, KM90/KM90R, SP90/SP90T, and FS130 Trimmer.
• Carburetor models: ZAMA C1Q-S173, C1Q-S174, C1Q-S176 (replacements for 41801200610/11/13 and related numbers).
• Package options: White package – 1 x carburetor. Red package – 1 x carburetor with 2 x gaskets, 2 x primer bulbs, 1 x air filter, 1 x fuel hose, 1 x adjusting screwdriver, 1 x spark plug, 1 x fuel filter. Gray package – 1 x carburetor, 2 x primer bulbs, 2 x gaskets, 1 x hex socket adjustment tool, 1 x air filter, 1 x spark plug, 1 x fuel filter, 2 x fuel lines.
• Materials: Metal and plastic construction designed for durability and long-lasting performance.
• Remanufacture quality: From Rainier Parts, crafted to meet OEM specifications for reliable replacement in STIHL 4-mix engines.
• Notes: Color, packaging styling, and included components may vary slightly; color rendering and measurements may differ by lighting and display.

This carburetor delivers real-world value by restoring precise fuel metering and steady idle on a wide range of STIHL trimmers. It’s especially beneficial if your FS100, FS110, FS87, FS90, or FS130 family unit is experiencing hard starting, rough idle, or inconsistent throttle response. The included component kits (in specific package options) help you complete a full rebuild in one order, reducing downtime and making maintenance straightforward for both shop technicians and eager DIYers.