Compatible carburetor for FS55, FS55R, FS38, FS45, FS46 string trimmers. Carburetor fits FS55, FS55R, FS38, FS45, FS46, KM55, HL45, FS45L, FS45C, FS46C, FS55C, FS55RC models. Replaces part numbers: C1Q-S66, C1Q-S71, C1Q-S143, C1Q-S153, C1Q-S186, 4140 120 0612, 4140 120 0619. Pre-adjusted for easy installation, typically requires no tuning. Install in about 10 minutes and start the engine. Restore performance to your old trimmer. Color: black. Material: metal. Package includes: 1 x carburetor, 2 x filters, 1 x pipe, 1 x plug, 2 x washers, 2 x primer bulbs, 2 x filters. Package content is limited to the items listed; other products are not included. Note: Display lighting and screen settings may cause the color to vary slightly from the actual item. Measurement may vary by +/- 1-3 cm.