- Compatibility: Designed for FS38, FS45, FS46, FS55, FS55C, FS55R, HL45, FC55, KM55, KM55C, and KM55R trimmers. Direct replacement for part number 4140 182 1000. - Precision Control: Experience smooth and accurate throttle response for optimal engine performance. Ideal for chainsaws, motorcycles, and various motorized equipment, this throttle trigger enhances your control during operation, improving safety and efficiency. - Durable Construction: Crafted from high-quality, wear-resistant materials, this throttle trigger is engineered for longevity. It withstands frequent use, resisting cracks and fading even in harsh conditions, ensuring reliable performance for all your tasks. - Enhanced Engine Efficiency: This throttle trigger promotes effective power delivery, helping to maintain consistent engine speed. It optimizes fuel consumption and reduces strain on the motor, making it suitable for both professional landscapers and weekend warriors. - Practical Applications: - Use it to power through tough landscaping jobs with your trimmer, ensuring precision cutting without sacrificing control. - Perfect for motorcycle enthusiasts looking to improve throttle responsiveness for a smoother ride. - Ideal for chainsaw users needing a reliable trigger that maintains performance in challenging environments. This throttle trigger offers essential features that improve your equipment's performance, ensuring you achieve the best results in every use.