Replaces existing carburetor. Smooth operation and easy installation. Brand new and high quality, durable. Easy to install, high efficiency. Compatible with STIHL FS38 FS45 FS46 FS55 FS55R FS55RC KM55 HL45 brush cutter and trimmer. Replaces OEM part numbers: ZAMA C1Q-S66 C1Q-S71 C1Q-S97 A C1Q-S143 C1Q-S153. It is an ideal replacement for an old or damaged carburetor. Model number: 510060 Product Name: Carburetor Material: Metal & Plastic 📦 Guaranteed Customer Service: If you have any problems, do not hesitate to contact us! Our customer service team is here to help you quickly ✅. 🚀 Fast Delivery: We process and ship your order as soon as possible 📬. However, due to exceptional circumstances (holidays, extreme weather conditions, high demand, etc.) a slight delay may occur. In this case, we will keep you informed as soon as possible 📢💌. 💯 Quality Guarantee: Your satisfaction is our priority! We are committed to offering you quality products for a worry-free purchase 💎. Thank you for your trust and support 💕. We look forward to providing you with an exceptional shopping experience! 🎁✨