General description High quality replacement carburetor parts for various Stihl models including FS87, FS90, FS100, FS110, FS130, HL90, HL95, HL100, HT100, HT101, KM90, KM100, KM110, SP90. These parts replace ZAMA carburetor models C1Q-S131, C1Q-S173, C1Q-S174, and C1Q-S176. Technical specifications Replacement part numbers: ZAMA C1Q-S131, C1Q-S173, C1Q-S174, C1Q-S176 Compatible with Stihl models: FS87, FS90, FS100, FS110, FS130, HL90, HL95, HL100, HT100, KM90, KM100, KM110, SP90 Replaces Stihl part numbers: 4180-120-0604, 4180-120-0607, 4180-120-0608, 4180-120-0610, 4180-120-0611, 4180-120-0613 Compatibility and accessories Compatible with the following Stihl models: FS100 FS100R FS100RX FS110 FS110R FS110X FS110RX FS87 FS87R FS90 FS90R HL100 HL100K FS90K HL90 HL95 HL95K HT100 KM10000 KM110R KM110 KM90 KM90R SP90 SP90T FS130 Installation Please check the size for compatibility before ordering. Usage Designed for use in various Stihl models to ensure optimal performance and longevity.