Ryan Lawnaire Aerator Clutch Spring (4118356)

The 4118356 clutch spring from Anvpkun is a direct replacement part for Ryan Lawnaire walk-behind aerators, ensuring reliable clutch operation across multiple models. Designed for compatibility with the LA-IV, LA-V, LA-4, and LA-5 series, this spring replaces original part numbers like 544908A, 544909B, 544910A, 544911B and others, including older and newer variants. It integrates seamlessly with the clutch cable and linkage system, providing consistent tension for proper lever disengagement during aerator use.

Constructed from galvanised carbon steel, this spring features a robust double-closed-loop hook design for secure attachment to the clutch cable or control lever. Its function is critical—ensuring the clutch lever returns to its resting position after disengagement, preventing jams or unresponsive operation. If your aerator’s clutch fails to reset, the lever becomes sluggish, or the spring shows signs of wear (e.g., broken coils or lost tension), this replacement part restores performance. Always verify compatibility with your specific model before fitting, as incorrect installation may compromise safety or functionality.

Installation requires caution: before replacing the spring, disconnect power or the engine to avoid injury. Attach the spring correctly between the clutch lever and cable/bracket, ensuring proper tension. Over-tightening or misalignment can lead to clutch failure or operational hazards. For best results, follow the aerator’s service manual or consult a professional if unsure about the fitting process.