- Compatibility: Designed specifically for FS38, FS45, FS46, FS55, FS55C, FS55R, HL45, FC55, KM55, KM55C, and KM55R trimmers. Replaces part number 4140 182 1000. - Precise Speed Control: This throttle trigger allows for responsive adjustments to engine speed, ensuring smooth power management for various cutting tasks and adapting effectively to different terrain conditions. - Comfortable Ergonomic Grip: Engineered for user comfort, this throttle control fits securely in your hand. Its ergonomic design minimizes fatigue during extended mowing sessions, allowing you to maintain precise control without discomfort. - Simple Installation: Designed for hassle-free replacement, this mower speed control lever installs quickly and securely. No complex tools are required, making it easy to restore full throttle function in no time. - Use Scenarios: - Ideal for homeowners tackling overgrown lawns, providing the power needed for efficient cutting. - Perfect for professional landscapers needing reliable performance in varied outdoor environments. - Great for garden maintenance, allowing precise control over trimming and edging tasks. This throttle control trigger enhances your trimmer's functionality with reliable performance, comfort, and ease of installation.